Rustup #368

oli-obk · 2018-05-01T09:12:30Z

that function has been removed

…uninitialized static error

Rustup to rustc 1.27.0-nightly (79252ff4e 2018-04-29)

bjorn3 · 2018-05-01T09:24:06Z

Appveyor:

cargo build --locked --release
    Updating registry `https://github.com/rust-lang/crates.io-index`
error: the lock file needs to be updated but --locked was passed to prevent this
Command exited with code 101

oli-obk · 2018-05-01T10:43:02Z

that's easy to fix... travis is failing with

3:TRACE:miri::fn_call: eval_fn_call: Instance {
    def: Item(
        DefId(1/0:4419 ~ std[c420]::rt[0]::lang_start_internal[0])
    ),
    substs: Slice(
        []
    )
}, Some(
    (
        Ptr {
            ptr: Pointer {
                primval: Ptr(
                    MemoryPointer {
                        alloc_id: AllocId(
                            550
                        ),
                        offset: 0
                    }
                )
            },
            align: Align {
                abi_pow2: 3,
                pref_pow2: 3
            },
            extra: None
        },
        bb1
    )
)
error: internal compiler error: no mir for `std::rt::lang_start_internal`

and I can reproduce locally :(

bjorn3 · 2018-05-02T13:05:32Z

miri/fn_call.rs

@@ -4,6 +4,7 @@ use rustc::hir::def_id::{DefId, CRATE_DEF_INDEX};
 use rustc::mir;
 use rustc_target::spec::abi::Abi;
 use rustc_data_structures::indexed_vec::Idx;
+use rustc_target::spec::abi::Abi;


Duplicate of two lines above

bjorn3 · 2018-05-06T17:02:06Z

that's easy to fix... travis is failing with
3:TRACE:miri::fn_call: eval_fn_call: Instance {

(...)

)
error: internal compiler error: no mir for `std::rt::lang_start_internal`

and I can reproduce locally :(

That is because std::rt::lang_start_internal doesn't have mir available, while std::rt::lang_start does, because it is generic. Because std::rt::lang_start has mir available, https://github.com/solson/miri/pull/368/files#diff-9dbaba2e8bdecf323e7bade8fa7fcb97L135 thinks it is fine to use it as wrapper.

Reproduction using modified priroda, to use the same logic as miri for the first frame: https://screenshots.firefox.com/HDUYaPBZm1sfgpdk/localhost

bjorn3 · 2018-05-06T17:08:32Z

With -Zalways-encode-mir i am getting:

error: no mir for `alloc::alloc::::__rust_alloc`

error[E0080]: constant evaluation error
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/alloc.rs:78:19
   |
78 |         let ptr = __rust_alloc(layout.size(), layout.align());
   |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no mir for `alloc::alloc::::__rust_alloc`
   |
note: inside call to `<std::heap::Global as std::heap::GlobalAlloc>::alloc`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/alloc.rs:112:22
   |
112|         NonNull::new(GlobalAlloc::alloc(self, layout)).ok_or(AllocErr)
   |                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::heap::Global as std::heap::Alloc>::alloc`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/raw_vec.rs:102:21
   |
102|                     a.alloc(Layout::from_size_align(alloc_size, align).unwrap())
   |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<alloc::raw_vec::RawVec<T, A>><u8, std::heap::Global>::allocate_in`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/raw_vec.rs:146:9
   |
146|         RawVec::allocate_in(cap, false, Global)
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<alloc::raw_vec::RawVec<T>><u8>::with_capacity`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/vec.rs:365:18
   |
365|             buf: RawVec::with_capacity(capacity),
   |                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::vec::Vec<T>><u8>::with_capacity`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/slice.rs:168:26
   |
168|         let mut vector = Vec::with_capacity(s.len());
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::slice::hack::to_vec::<u8>`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/slice.rs:374:9
   |
374|         hack::to_vec(self)
   |         ^^^^^^^^^^^^^^^^^^
note: inside call to `std::slice::<impl [T]><u8>::to_vec`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/slice.rs:620:9
   |
620|         self.to_vec()
   |         ^^^^^^^^^^^^^
note: inside call to `std::slice::<impl std::borrow::ToOwned for [T]><u8>::to_owned`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/str.rs:150:46
   |
150|         unsafe { String::from_utf8_unchecked(self.as_bytes().to_owned()) }
   |                                              ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::str::<impl std::borrow::ToOwned for str>::to_owned`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libstd/rt.rs:50:39
   |
50 |         let thread = Thread::new(Some("main".to_owned()));
   |                                       ^^^^^^^^^^^^^^^^^
note: inside call to `std::rt::lang_start_internal`
  --> /home/bjorn/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
   |
74 |     lang_start_internal(&move || main().report(), argc, argv)
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.

oli-obk · 2018-05-06T18:10:36Z

O.m.g. so obvious in hindsight!

eddyb · 2018-05-07T08:42:37Z

miri/validation.rs

+                    Variants::Tagged { ref tag, .. } => {
+                        assert_eq!(i, 0);
+                        return Ok(tag.value.to_ty(tcx))
+                    },


This shouldn't be duplicated, just write tag: ref discr like the NicheFilling case does with niche.

Fixed build for latest nightly (again)

Alloc api fix and tmp disable validation_op because of ICE

bjorn3 · 2018-05-07T09:02:07Z

Error when validate_op is enabled:

error: internal compiler error: librustc_mir/interpret/eval_context.rs:1334: unsized primval ptr read from std::heap::Opaque

thread 'main' panicked at 'Box<Any>', librustc_errors/lib.rs:554:9
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
             at libstd/sys/unix/backtrace/tracing/gcc_s.rs:49
   1: std::sys_common::backtrace::print
             at libstd/sys_common/backtrace.rs:71
             at libstd/sys_common/backtrace.rs:59
   2: std::panicking::default_hook::{{closure}}
             at libstd/panicking.rs:211
   3: std::panicking::default_hook
             at libstd/panicking.rs:227
   4: rustc::util::common::panic_hook
   5: std::panicking::rust_panic_with_hook
             at libstd/panicking.rs:467
   6: std::panicking::begin_panic
   7: rustc_errors::Handler::bug
   8: rustc::session::opt_span_bug_fmt::{{closure}}
   9: rustc::ty::context::tls::with_opt::{{closure}}
  10: rustc::ty::context::tls::with_context_opt
  11: rustc::ty::context::tls::with_opt
  12: rustc::session::opt_span_bug_fmt
  13: rustc::session::bug_fmt
  14: <rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, M>>::read_ptr
             at ./<bug macros>:4
  15: <rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, M>>::try_read_value
             at /checkout/src/librustc_mir/interpret/eval_context.rs:1404
  16: <rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, M>>::read_value
             at /checkout/src/librustc_mir/interpret/eval_context.rs:1303
  17: <rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, M>>::follow_by_ref_value
             at /checkout/src/librustc_mir/interpret/eval_context.rs:1066
  18: <rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, miri::Evaluator<'tcx>> as miri::validation::EvalContextExt<'tcx>>::validate
             at miri/validation.rs:647
  19: <rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, miri::Evaluator<'tcx>> as miri::validation::EvalContextExt<'tcx>>::validation_op
             at miri/validation.rs:221
  20: <miri::Evaluator<'tcx> as rustc_mir::interpret::machine::Machine<'mir, 'tcx>>::validation_op
             at miri/lib.rs:452
  21: rustc_mir::interpret::step::<impl rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, M>>::statement
             at /checkout/src/librustc_mir/interpret/step.rs:85
  22: rustc_mir::interpret::step::<impl rustc_mir::interpret::eval_context::EvalContext<'a, 'mir, 'tcx, M>>::step
             at /checkout/src/librustc_mir/interpret/step.rs:35
  23: miri::eval_main::run_main
             at miri/lib.rs:157
  24: miri::eval_main
             at miri/lib.rs:170
  25: miri::after_analysis
             at miri/bin/miri.rs:147
  26: <miri::MiriCompilerCalls as rustc_driver::CompilerCalls<'a>>::build_controller::{{closure}}
             at miri/bin/miri.rs:88
  27: rustc::ty::context::tls::with_context
  28: rustc_driver::driver::compile_input::{{closure}}
  29: rustc::ty::context::tls::enter_context
  30: <std::thread::local::LocalKey<T>>::with
  31: rustc::ty::context::TyCtxt::create_and_enter
  32: rustc_driver::driver::compile_input
  33: rustc_driver::run_compiler_impl
  34: <scoped_tls::ScopedKey<T>>::set
  35: syntax::with_globals
  36: rustc_driver::run_compiler
  37: miri::main
             at miri/bin/miri.rs:237
  38: std::rt::lang_start::{{closure}}
             at /checkout/src/libstd/rt.rs:74
  39: std::panicking::try::do_call
             at libstd/rt.rs:59
             at libstd/panicking.rs:310
  40: __rust_maybe_catch_panic
             at libpanic_unwind/lib.rs:105
  41: std::rt::lang_start_internal
             at libstd/panicking.rs:289
             at libstd/panic.rs:374
             at libstd/rt.rs:58
  42: std::rt::lang_start
             at /checkout/src/libstd/rt.rs:74
  43: main
  44: __libc_start_main
  45: _start

RalfJung · 2018-05-07T09:52:02Z

Yeah I suggest to just disable validation for now.

bjorn3 · 2018-05-09T11:01:10Z

Four run-pass-fullmir tests failed all of them inside memchr while trying to print:

error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'/n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
[...]

failures:

---- [ui] run-pass-fullmir/catch.rs stdout ----
	normalized stdout:


expected stdout:
1


diff of stdout:

-1
-

The actual stdout differed from the expected stdout.
Actual stdout saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/catch.stdout
normalized stderr:
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'/n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1168:38
    |
1168|                 write_prefix(self)?; self.buf.write_str(buf)
    |                                      ^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::pad_integral`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/num.rs:256:13
    |
256 |             f.pad_integral(is_nonnegative, "", buf_slice)
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `core::fmt::num::<impl std::fmt::Display for i32>::fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1102:9
    |
1102|         (value.formatter)(value.value, self)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::run`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1049:17
    |
1049|                 formatter.run(arg)?;
    |                 ^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> $DIR/catch.rs:7:5
    |
7   |     println!("{}", i);
    |     ^^^^^^^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.


expected stderr:


diff of stderr:

+error: a raw memory access tried to access part of a pointer value as raw bytes
+
+error[E0080]: constant evaluation error
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
+    |
+106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
+    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
+    |
+note: inside call to `core::slice::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
+    |
+53  |         ::core::slice::memchr::memrchr(needle, haystack)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
+    |
+56  |     memrchr_specific(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
+    |
+55  |     ::sys::memchr::memrchr(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
+    |
+905 |         let i = match memchr::memrchr(b'/n', buf) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
+    |
+465 |         self.inner.borrow_mut().write(buf)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
+    |
+1111|             match self.write(buf) {
+    |                   ^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
+    |
+1171|                 match self.inner.write_all(s.as_bytes()) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1168:38
+    |
+1168|                 write_prefix(self)?; self.buf.write_str(buf)
+    |                                      ^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::Formatter::pad_integral`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/num.rs:256:13
+    |
+256 |             f.pad_integral(is_nonnegative, "", buf_slice)
+    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `core::fmt::num::<impl std::fmt::Display for i32>::fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1102:9
+    |
+1102|         (value.formatter)(value.value, self)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::Formatter::run`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1049:17
+    |
+1049|                 formatter.run(arg)?;
+    |                 ^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
+    |
+1182|         match fmt::write(&mut output, fmt) {
+    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
+    |
+459 |         self.lock().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
+    |
+686 |         global_s().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
+    |
+294 |               Ok(f(match *slot.get() {
+    |  ________________^
+295 | |                 Some(ref inner) => inner,
+296 | |                 None => self.init(slot),
+297 | |             }))
+    | |______________^
+note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
+    |
+680 |       let result = local_s.try_with(|s| {
+    |  __________________^
+681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
+682 | |             if let Some(w) = borrowed.as_mut() {
+683 | |                 return w.write_fmt(args);
+...   |
+686 | |         global_s().write_fmt(args)
+687 | |     }).unwrap_or_else(|_| {
+    | |______^
+note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
+    |
+701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::io::_print`
+   --> $DIR/catch.rs:7:5
+    |
+7   |     println!("{}", i);
+    |     ^^^^^^^^^^^^^^^^^^
+note: inside call to `main`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |                                  ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |                                                                           ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
+    |
+136 |     f()
+    |     ^^^
+note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
+    |
+310 |             ptr::write(&mut (*data).r, f());
+    |                                        ^^^
+note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
+    |
+306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
+307 | |         unsafe {
+308 | |             let data = data as *mut Data<F, R>;
+309 | |             let f = ptr::read(&mut (*data).f);
+310 | |             ptr::write(&mut (*data).r, f());
+311 | |         }
+312 | |     }
+    | |_____^
+note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
+    |
+374 |         panicking::try(f)
+    |         ^^^^^^^^^^^^^^^^^
+note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
+    |
+58  |           let exit_code = panic::catch_unwind(|| {
+    |  _________________________^
+59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+60  | |         });
+    | |__________^
+note: inside call to `std::rt::lang_start_internal`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0080`.
+

The actual stderr differed from the expected stderr.
Actual stderr saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/catch.stderr
To update references, run this command from build directory:
tests/run-pass-fullmir/update-references.sh '/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf' 'catch.rs'

error: 2 errors occurred comparing output.
status: exit code: 101
command: "target/debug/miri" "tests/run-pass-fullmir/catch.rs" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf" "--target=x86_64-apple-darwin" "-C" "prefer-dynamic" "-o" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/catch.stage-id" "-Zmiri-start-fn" "--sysroot" "/Users/bjorn/.xargo/HOST" "-Zmir-opt-level=0" "-Zmir-emit-validate=1" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/catch.stage-id.aux" "-A" "unused"
stdout:
------------------------------------------

------------------------------------------
stderr:
------------------------------------------
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'\n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1168:38
    |
1168|                 write_prefix(self)?; self.buf.write_str(buf)
    |                                      ^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::pad_integral`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/num.rs:256:13
    |
256 |             f.pad_integral(is_nonnegative, "", buf_slice)
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `core::fmt::num::<impl std::fmt::Display for i32>::fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1102:9
    |
1102|         (value.formatter)(value.value, self)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::run`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1049:17
    |
1049|                 formatter.run(arg)?;
    |                 ^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> tests/run-pass-fullmir/catch.rs:7:5
    |
7   |     println!("{}", i);
    |     ^^^^^^^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.

------------------------------------------

thread '[ui] run-pass-fullmir/catch.rs' panicked at 'explicit panic', /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539:9
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: std::panicking::rust_panic_with_hook
   5: rand::prng::isaac64::Isaac64Rng::init::{{closure}}
             at /Users/travis/build/rust-lang/rust/src/libstd/panicking.rs:397
   6: compiletest_rs::runtest::TestCx::compare_output::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539
   7: compiletest_rs::runtest::TestCx::fatal_proc_rec
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:1639
   8: compiletest_rs::runtest::TestCx::run_ui_test
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2238
   9: compiletest_rs::runtest::TestCx::run_revision
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:140
  10: core::alloc::Layout::for_value
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:80
  11: compiletest_rs::make_test_closure::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/lib.rs:275
  12: <compiletest_rs::common::TestPaths as core::clone::Clone>::clone
             at /Users/travis/build/rust-lang/rust/src/liballoc/boxed.rs:638
  13: <F as alloc::boxed::FnBox<A>>::call_box
  14: __rust_maybe_catch_panic

---- [ui] run-pass-fullmir/format.rs stdout ----
	normalized stdout:


expected stdout:
Hello 13


diff of stdout:

-Hello 13
-

The actual stdout differed from the expected stdout.
Actual stdout saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/format.stdout
normalized stderr:
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'/n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1048:17
    |
1048|                 formatter.buf.write_str(*piece)?;
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> $DIR/format.rs:3:5
    |
3   |     println!("Hello {}", 13);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.


expected stderr:


diff of stderr:

+error: a raw memory access tried to access part of a pointer value as raw bytes
+
+error[E0080]: constant evaluation error
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
+    |
+106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
+    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
+    |
+note: inside call to `core::slice::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
+    |
+53  |         ::core::slice::memchr::memrchr(needle, haystack)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
+    |
+56  |     memrchr_specific(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
+    |
+55  |     ::sys::memchr::memrchr(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
+    |
+905 |         let i = match memchr::memrchr(b'/n', buf) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
+    |
+465 |         self.inner.borrow_mut().write(buf)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
+    |
+1111|             match self.write(buf) {
+    |                   ^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
+    |
+1171|                 match self.inner.write_all(s.as_bytes()) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1048:17
+    |
+1048|                 formatter.buf.write_str(*piece)?;
+    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
+    |
+1182|         match fmt::write(&mut output, fmt) {
+    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
+    |
+459 |         self.lock().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
+    |
+686 |         global_s().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
+    |
+294 |               Ok(f(match *slot.get() {
+    |  ________________^
+295 | |                 Some(ref inner) => inner,
+296 | |                 None => self.init(slot),
+297 | |             }))
+    | |______________^
+note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
+    |
+680 |       let result = local_s.try_with(|s| {
+    |  __________________^
+681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
+682 | |             if let Some(w) = borrowed.as_mut() {
+683 | |                 return w.write_fmt(args);
+...   |
+686 | |         global_s().write_fmt(args)
+687 | |     }).unwrap_or_else(|_| {
+    | |______^
+note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
+    |
+701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::io::_print`
+   --> $DIR/format.rs:3:5
+    |
+3   |     println!("Hello {}", 13);
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `main`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |                                  ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |                                                                           ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
+    |
+136 |     f()
+    |     ^^^
+note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
+    |
+310 |             ptr::write(&mut (*data).r, f());
+    |                                        ^^^
+note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
+    |
+306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
+307 | |         unsafe {
+308 | |             let data = data as *mut Data<F, R>;
+309 | |             let f = ptr::read(&mut (*data).f);
+310 | |             ptr::write(&mut (*data).r, f());
+311 | |         }
+312 | |     }
+    | |_____^
+note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
+    |
+374 |         panicking::try(f)
+    |         ^^^^^^^^^^^^^^^^^
+note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
+    |
+58  |           let exit_code = panic::catch_unwind(|| {
+    |  _________________________^
+59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+60  | |         });
+    | |__________^
+note: inside call to `std::rt::lang_start_internal`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0080`.
+

The actual stderr differed from the expected stderr.
Actual stderr saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/format.stderr
To update references, run this command from build directory:
tests/run-pass-fullmir/update-references.sh '/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf' 'format.rs'

error: 2 errors occurred comparing output.
status: exit code: 101
command: "target/debug/miri" "tests/run-pass-fullmir/format.rs" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf" "--target=x86_64-apple-darwin" "-C" "prefer-dynamic" "-o" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/format.stage-id" "-Zmiri-start-fn" "--sysroot" "/Users/bjorn/.xargo/HOST" "-Zmir-opt-level=0" "-Zmir-emit-validate=1" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/format.stage-id.aux" "-A" "unused"
stdout:
------------------------------------------

------------------------------------------
stderr:
------------------------------------------
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'\n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1048:17
    |
1048|                 formatter.buf.write_str(*piece)?;
    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> tests/run-pass-fullmir/format.rs:3:5
    |
3   |     println!("Hello {}", 13);
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.

------------------------------------------

thread '[ui] run-pass-fullmir/format.rs' panicked at 'explicit panic', /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539:9
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: std::panicking::rust_panic_with_hook
   5: rand::prng::isaac64::Isaac64Rng::init::{{closure}}
             at /Users/travis/build/rust-lang/rust/src/libstd/panicking.rs:397
   6: compiletest_rs::runtest::TestCx::compare_output::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539
   7: compiletest_rs::runtest::TestCx::fatal_proc_rec
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:1639
   8: compiletest_rs::runtest::TestCx::run_ui_test
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2238
   9: compiletest_rs::runtest::TestCx::run_revision
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:140
  10: core::alloc::Layout::for_value
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:80
  11: compiletest_rs::make_test_closure::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/lib.rs:275
  12: <compiletest_rs::common::TestPaths as core::clone::Clone>::clone
             at /Users/travis/build/rust-lang/rust/src/liballoc/boxed.rs:638
  13: <F as alloc::boxed::FnBox<A>>::call_box
  14: __rust_maybe_catch_panic

---- [ui] run-pass-fullmir/hello.rs stdout ----
	normalized stdout:


expected stdout:
Hello, world!


diff of stdout:

-Hello, world!
-

The actual stdout differed from the expected stdout.
Actual stdout saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/hello.stdout
normalized stderr:
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'/n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1056:9
    |
1056|         formatter.buf.write_str(*piece)?;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> $DIR/hello.rs:3:5
    |
3   |     println!("Hello, world!");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.


expected stderr:


diff of stderr:

+error: a raw memory access tried to access part of a pointer value as raw bytes
+
+error[E0080]: constant evaluation error
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
+    |
+106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
+    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
+    |
+note: inside call to `core::slice::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
+    |
+53  |         ::core::slice::memchr::memrchr(needle, haystack)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
+    |
+56  |     memrchr_specific(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
+    |
+55  |     ::sys::memchr::memrchr(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
+    |
+905 |         let i = match memchr::memrchr(b'/n', buf) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
+    |
+465 |         self.inner.borrow_mut().write(buf)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
+    |
+1111|             match self.write(buf) {
+    |                   ^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
+    |
+1171|                 match self.inner.write_all(s.as_bytes()) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1056:9
+    |
+1056|         formatter.buf.write_str(*piece)?;
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
+    |
+1182|         match fmt::write(&mut output, fmt) {
+    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
+    |
+459 |         self.lock().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
+    |
+686 |         global_s().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
+    |
+294 |               Ok(f(match *slot.get() {
+    |  ________________^
+295 | |                 Some(ref inner) => inner,
+296 | |                 None => self.init(slot),
+297 | |             }))
+    | |______________^
+note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
+    |
+680 |       let result = local_s.try_with(|s| {
+    |  __________________^
+681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
+682 | |             if let Some(w) = borrowed.as_mut() {
+683 | |                 return w.write_fmt(args);
+...   |
+686 | |         global_s().write_fmt(args)
+687 | |     }).unwrap_or_else(|_| {
+    | |______^
+note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
+    |
+701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::io::_print`
+   --> $DIR/hello.rs:3:5
+    |
+3   |     println!("Hello, world!");
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `main`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |                                  ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |                                                                           ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
+    |
+136 |     f()
+    |     ^^^
+note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
+    |
+310 |             ptr::write(&mut (*data).r, f());
+    |                                        ^^^
+note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
+    |
+306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
+307 | |         unsafe {
+308 | |             let data = data as *mut Data<F, R>;
+309 | |             let f = ptr::read(&mut (*data).f);
+310 | |             ptr::write(&mut (*data).r, f());
+311 | |         }
+312 | |     }
+    | |_____^
+note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
+    |
+374 |         panicking::try(f)
+    |         ^^^^^^^^^^^^^^^^^
+note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
+    |
+58  |           let exit_code = panic::catch_unwind(|| {
+    |  _________________________^
+59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+60  | |         });
+    | |__________^
+note: inside call to `std::rt::lang_start_internal`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0080`.
+

The actual stderr differed from the expected stderr.
Actual stderr saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/hello.stderr
To update references, run this command from build directory:
tests/run-pass-fullmir/update-references.sh '/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf' 'hello.rs'

error: 2 errors occurred comparing output.
status: exit code: 101
command: "target/debug/miri" "tests/run-pass-fullmir/hello.rs" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf" "--target=x86_64-apple-darwin" "-C" "prefer-dynamic" "-o" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/hello.stage-id" "-Zmiri-start-fn" "--sysroot" "/Users/bjorn/.xargo/HOST" "-Zmir-opt-level=0" "-Zmir-emit-validate=1" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/hello.stage-id.aux" "-A" "unused"
stdout:
------------------------------------------

------------------------------------------
stderr:
------------------------------------------
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'\n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1056:9
    |
1056|         formatter.buf.write_str(*piece)?;
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> tests/run-pass-fullmir/hello.rs:3:5
    |
3   |     println!("Hello, world!");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.

------------------------------------------

thread '[ui] run-pass-fullmir/hello.rs' panicked at 'explicit panic', /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539:9
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: std::panicking::rust_panic_with_hook
   5: rand::prng::isaac64::Isaac64Rng::init::{{closure}}
             at /Users/travis/build/rust-lang/rust/src/libstd/panicking.rs:397
   6: compiletest_rs::runtest::TestCx::compare_output::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539
   7: compiletest_rs::runtest::TestCx::fatal_proc_rec
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:1639
   8: compiletest_rs::runtest::TestCx::run_ui_test
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2238
   9: compiletest_rs::runtest::TestCx::run_revision
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:140
  10: core::alloc::Layout::for_value
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:80
  11: compiletest_rs::make_test_closure::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/lib.rs:275
  12: <compiletest_rs::common::TestPaths as core::clone::Clone>::clone
             at /Users/travis/build/rust-lang/rust/src/liballoc/boxed.rs:638
  13: <F as alloc::boxed::FnBox<A>>::call_box
  14: __rust_maybe_catch_panic

---- [ui] run-pass-fullmir/issue-3794.rs stdout ----
	normalized stdout:


expected stdout:
S { s: 5 }
S { s: 5 }


diff of stdout:

-S { s: 5 }
-S { s: 5 }
-

The actual stdout differed from the expected stdout.
Actual stdout saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/issue-3794.stdout
normalized stderr:
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'/n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1368:9
    |
1368|         self.buf.write_str(data)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/builders.rs:99:18
    |
99  |     let result = fmt.write_str(name);
    |                  ^^^^^^^^^^^^^^^^^^^
note: inside call to `core::fmt::builders::debug_struct_new`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1603:9
    |
1603|         builders::debug_struct_new(self, name)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::debug_struct`
   --> $DIR/issue-3794.rs:18:10
    |
18  | #[derive(Debug)]
    |          ^^^^^
note: inside call to `<S as std::fmt::Debug>::fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1774:77
    |
1774|             fn fmt(&self, f: &mut Formatter) -> Result { $tr::fmt(&**self, f) }
    |                                                                             ^
note: inside call to `<&'a T as std::fmt::Debug><S>::fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1102:9
    |
1102|         (value.formatter)(value.value, self)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::run`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1049:17
    |
1049|                 formatter.run(arg)?;
    |                 ^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> $DIR/issue-3794.rs:25:9
    |
25  |         println!("{:?}", self);
    |         ^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<S as T>::print`
   --> $DIR/issue-3794.rs:34:5
    |
34  |     s.print();
    |     ^^^^^^^^^
note: inside call to `print_s`
   --> $DIR/issue-3794.rs:39:5
    |
39  |     print_s(&*s);
    |     ^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.


expected stderr:


diff of stderr:

+error: a raw memory access tried to access part of a pointer value as raw bytes
+
+error[E0080]: constant evaluation error
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
+    |
+106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
+    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
+    |
+note: inside call to `core::slice::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
+    |
+53  |         ::core::slice::memchr::memrchr(needle, haystack)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
+    |
+56  |     memrchr_specific(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::sys::unix::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
+    |
+55  |     ::sys::memchr::memrchr(needle, haystack)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::memchr::memrchr`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
+    |
+905 |         let i = match memchr::memrchr(b'/n', buf) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
+    |
+465 |         self.inner.borrow_mut().write(buf)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
+    |
+1111|             match self.write(buf) {
+    |                   ^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
+    |
+1171|                 match self.inner.write_all(s.as_bytes()) {
+    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1368:9
+    |
+1368|         self.buf.write_str(data)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::Formatter::write_str`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/builders.rs:99:18
+    |
+99  |     let result = fmt.write_str(name);
+    |                  ^^^^^^^^^^^^^^^^^^^
+note: inside call to `core::fmt::builders::debug_struct_new`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1603:9
+    |
+1603|         builders::debug_struct_new(self, name)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::Formatter::debug_struct`
+   --> $DIR/issue-3794.rs:18:10
+    |
+18  | #[derive(Debug)]
+    |          ^^^^^
+note: inside call to `<S as std::fmt::Debug>::fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1774:77
+    |
+1774|             fn fmt(&self, f: &mut Formatter) -> Result { $tr::fmt(&**self, f) }
+    |                                                                             ^
+note: inside call to `<&'a T as std::fmt::Debug><S>::fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1102:9
+    |
+1102|         (value.formatter)(value.value, self)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::Formatter::run`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1049:17
+    |
+1049|                 formatter.run(arg)?;
+    |                 ^^^^^^^^^^^^^^^^^^
+note: inside call to `std::fmt::write`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
+    |
+1182|         match fmt::write(&mut output, fmt) {
+    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
+    |
+459 |         self.lock().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
+    |
+686 |         global_s().write_fmt(args)
+    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
+    |
+294 |               Ok(f(match *slot.get() {
+    |  ________________^
+295 | |                 Some(ref inner) => inner,
+296 | |                 None => self.init(slot),
+297 | |             }))
+    | |______________^
+note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
+    |
+680 |       let result = local_s.try_with(|s| {
+    |  __________________^
+681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
+682 | |             if let Some(w) = borrowed.as_mut() {
+683 | |                 return w.write_fmt(args);
+...   |
+686 | |         global_s().write_fmt(args)
+687 | |     }).unwrap_or_else(|_| {
+    | |______^
+note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
+    |
+701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `std::io::_print`
+   --> $DIR/issue-3794.rs:25:9
+    |
+25  |         println!("{:?}", self);
+    |         ^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `<S as T>::print`
+   --> $DIR/issue-3794.rs:34:5
+    |
+34  |     s.print();
+    |     ^^^^^^^^^
+note: inside call to `print_s`
+   --> $DIR/issue-3794.rs:39:5
+    |
+39  |     print_s(&*s);
+    |     ^^^^^^^^^^^^
+note: inside call to `main`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |                                  ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |                                                                           ^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
+    |
+136 |     f()
+    |     ^^^
+note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
+    |
+59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+note: inside call to `closure`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
+    |
+310 |             ptr::write(&mut (*data).r, f());
+    |                                        ^^^
+note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
+    |
+306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
+307 | |         unsafe {
+308 | |             let data = data as *mut Data<F, R>;
+309 | |             let f = ptr::read(&mut (*data).f);
+310 | |             ptr::write(&mut (*data).r, f());
+311 | |         }
+312 | |     }
+    | |_____^
+note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
+    |
+374 |         panicking::try(f)
+    |         ^^^^^^^^^^^^^^^^^
+note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
+    |
+58  |           let exit_code = panic::catch_unwind(|| {
+    |  _________________________^
+59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
+60  | |         });
+    | |__________^
+note: inside call to `std::rt::lang_start_internal`
+   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
+    |
+74  |     lang_start_internal(&move || main().report(), argc, argv)
+    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0080`.
+

The actual stderr differed from the expected stderr.
Actual stderr saved to /var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/issue-3794.stderr
To update references, run this command from build directory:
tests/run-pass-fullmir/update-references.sh '/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf' 'issue-3794.rs'

error: 2 errors occurred comparing output.
status: exit code: 101
command: "target/debug/miri" "tests/run-pass-fullmir/issue-3794.rs" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf" "--target=x86_64-apple-darwin" "-C" "prefer-dynamic" "-o" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/issue-3794.stage-id" "-Zmiri-start-fn" "--sysroot" "/Users/bjorn/.xargo/HOST" "-Zmir-opt-level=0" "-Zmir-emit-validate=1" "-L" "/var/folders/pr/dsmnz7795h18nncdpws5d9h00000gp/T/compiletestzLhrNf/issue-3794.stage-id.aux" "-A" "unused"
stdout:
------------------------------------------

------------------------------------------
stderr:
------------------------------------------
error: a raw memory access tried to access part of a pointer value as raw bytes

error[E0080]: constant evaluation error
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/slice/memchr.rs:106:21
    |
106 |     let end_align = (ptr as usize + len) & (usize_bytes - 1);
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ a raw memory access tried to access part of a pointer value as raw bytes
    |
note: inside call to `core::slice::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:53:9
    |
53  |         ::core::slice::memchr::memrchr(needle, haystack)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr::memrchr_specific`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys/unix/memchr.rs:56:5
    |
56  |     memrchr_specific(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::sys::unix::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/memchr.rs:55:5
    |
55  |     ::sys::memchr::memrchr(needle, haystack)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::memchr::memrchr`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/buffered.rs:905:23
    |
905 |         let i = match memchr::memrchr(b'\n', buf) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::LineWriter<W> as std::io::Write><std::io::stdio::Maybe<std::io::stdio::StdoutRaw>>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:465:9
    |
465 |         self.inner.borrow_mut().write(buf)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock<'a> as std::io::Write>::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1111:19
    |
1111|             match self.write(buf) {
    |                   ^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_all`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1171:23
    |
1171|                 match self.inner.write_all(s.as_bytes()) {
    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Write::write_fmt::Adaptor<'a, T> as std::fmt::Write><std::io::StdoutLock>::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1368:9
    |
1368|         self.buf.write_str(data)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::write_str`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/builders.rs:99:18
    |
99  |     let result = fmt.write_str(name);
    |                  ^^^^^^^^^^^^^^^^^^^
note: inside call to `core::fmt::builders::debug_struct_new`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1603:9
    |
1603|         builders::debug_struct_new(self, name)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::debug_struct`
   --> tests/run-pass-fullmir/issue-3794.rs:18:10
    |
18  | #[derive(Debug)]
    |          ^^^^^
note: inside call to `<S as std::fmt::Debug>::fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1774:77
    |
1774|             fn fmt(&self, f: &mut Formatter) -> Result { $tr::fmt(&**self, f) }
    |                                                                             ^
note: inside call to `<&'a T as std::fmt::Debug><S>::fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1102:9
    |
1102|         (value.formatter)(value.value, self)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::Formatter::run`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libcore/fmt/mod.rs:1049:17
    |
1049|                 formatter.run(arg)?;
    |                 ^^^^^^^^^^^^^^^^^^
note: inside call to `std::fmt::write`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/mod.rs:1182:15
    |
1182|         match fmt::write(&mut output, fmt) {
    |               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::StdoutLock as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:459:9
    |
459 |         self.lock().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<std::io::Stdout as std::io::Write>::write_fmt`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:686:9
    |
686 |         global_s().write_fmt(args)
    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/thread/local.rs:294:16
    |
294 |               Ok(f(match *slot.get() {
    |  ________________^
295 | |                 Some(ref inner) => inner,
296 | |                 None => self.init(slot),
297 | |             }))
    | |______________^
note: inside call to `<std::thread::LocalKey<T>><std::cell::RefCell<std::option::Option<std::boxed::Box<std::io::Write + std::marker::Send>>>>::try_with::<[closure@DefId(1/1:997 ~ std[d95f]::io[0]::stdio[0]::print_to[0]::{{closure}}[0]) 0:&std::fmt::Arguments, 1:&fn() -> std::io::Stdout], std::result::Result<(), std::io::Error>>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:680:18
    |
680 |       let result = local_s.try_with(|s| {
    |  __________________^
681 | |         if let Ok(mut borrowed) = s.try_borrow_mut() {
682 | |             if let Some(w) = borrowed.as_mut() {
683 | |                 return w.write_fmt(args);
...   |
686 | |         global_s().write_fmt(args)
687 | |     }).unwrap_or_else(|_| {
    | |______^
note: inside call to `std::io::stdio::print_to::<std::io::Stdout>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/io/stdio.rs:701:5
    |
701 |     print_to(args, &LOCAL_STDOUT, stdout, "stdout");
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `std::io::_print`
   --> tests/run-pass-fullmir/issue-3794.rs:25:9
    |
25  |         println!("{:?}", self);
    |         ^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `<S as T>::print`
   --> tests/run-pass-fullmir/issue-3794.rs:34:5
    |
34  |     s.print();
    |     ^^^^^^^^^
note: inside call to `print_s`
   --> tests/run-pass-fullmir/issue-3794.rs:39:5
    |
39  |     print_s(&*s);
    |     ^^^^^^^^^^^^
note: inside call to `main`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:34
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |                                  ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:75
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |                                                                           ^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/sys_common/backtrace.rs:136:5
    |
136 |     f()
    |     ^^^
note: inside call to `std::sys_common::backtrace::__rust_begin_short_backtrace::<[closure@DefId(1/1:1795 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]::{{closure}}[0]) 0:&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:59:13
    |
59  |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
note: inside call to `closure`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:310:40
    |
310 |             ptr::write(&mut (*data).r, f());
    |                                        ^^^
note: inside call to `std::panicking::try::do_call::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panicking.rs:306:5
    |
306 | /     fn do_call<F: FnOnce() -> R, R>(data: *mut u8) {
307 | |         unsafe {
308 | |             let data = data as *mut Data<F, R>;
309 | |             let f = ptr::read(&mut (*data).f);
310 | |             ptr::write(&mut (*data).r, f());
311 | |         }
312 | |     }
    | |_____^
note: inside call to `std::panicking::try::<i32, [closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe]>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/panic.rs:374:9
    |
374 |         panicking::try(f)
    |         ^^^^^^^^^^^^^^^^^
note: inside call to `std::panic::catch_unwind::<[closure@DefId(1/1:1794 ~ std[d95f]::rt[0]::lang_start_internal[0]::{{closure}}[0]) 0:&&std::ops::Fn() -> i32 + std::marker::Sync + std::panic::RefUnwindSafe], i32>`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:58:25
    |
58  |           let exit_code = panic::catch_unwind(|| {
    |  _________________________^
59  | |             ::sys_common::backtrace::__rust_begin_short_backtrace(move || main())
60  | |         });
    | |__________^
note: inside call to `std::rt::lang_start_internal`
   --> /Users/bjorn/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/src/rust/src/libstd/rt.rs:74:5
    |
74  |     lang_start_internal(&move || main().report(), argc, argv)
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0080`.

------------------------------------------

thread '[ui] run-pass-fullmir/issue-3794.rs' panicked at 'explicit panic', /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539:9
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
stack backtrace:
   0: std::sys::unix::backtrace::tracing::imp::unwind_backtrace
   1: std::sys_common::backtrace::print
   2: std::panicking::default_hook::{{closure}}
   3: std::panicking::default_hook
   4: std::panicking::rust_panic_with_hook
   5: rand::prng::isaac64::Isaac64Rng::init::{{closure}}
             at /Users/travis/build/rust-lang/rust/src/libstd/panicking.rs:397
   6: compiletest_rs::runtest::TestCx::compare_output::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2539
   7: compiletest_rs::runtest::TestCx::fatal_proc_rec
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:1639
   8: compiletest_rs::runtest::TestCx::run_ui_test
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:2238
   9: compiletest_rs::runtest::TestCx::run_revision
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:140
  10: core::alloc::Layout::for_value
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/runtest.rs:80
  11: compiletest_rs::make_test_closure::{{closure}}
             at /Users/bjorn/.cargo/registry/src/github.com-1ecc6299db9ec823/compiletest_rs-0.3.9/src/lib.rs:275
  12: <compiletest_rs::common::TestPaths as core::clone::Clone>::clone
             at /Users/travis/build/rust-lang/rust/src/liballoc/boxed.rs:638
  13: <F as alloc::boxed::FnBox<A>>::call_box
  14: __rust_maybe_catch_panic


failures:
    [ui] run-pass-fullmir/catch.rs
    [ui] run-pass-fullmir/format.rs
    [ui] run-pass-fullmir/hello.rs
    [ui] run-pass-fullmir/issue-3794.rs

test result: FAILED. 12 passed; 4 failed; 0 ignored; 0 measured; 0 filtered out

test run_pass_miri_noopt ... FAILED

Edit: submitted rust-lang/rust#50567

oli-obk · 2018-05-09T12:30:03Z

WE ARE BACK IN BUSINESS

Rule 39 applies, because this is cool!

bjorn3 · 2018-05-09T12:30:58Z

Hooray!!! Will update priroda soon!

Edit: updated

RalfJung · 2018-05-09T14:19:04Z

Wow, awesome. Thanks a ton :)

oli-obk and others added 28 commits December 15, 2017 10:14

Update to some cleanups in rustc

2671cf3

stop using Instance::def_ty

a23e587

that function has been removed

Merge branch 'master' into def_ty

5147655

update compiletest dependency

30496f5

pass typecheck

03aa876

update log deps

cabdc55

update for rust/47205

33af320

partially deal with rust/46479

d289c0f

Rustup

753da67

Add stack guard shim

a3a01ba

Get the tests one step further

cd89e56

Use elem align as src align in copy intrinsic

6a85104

Hack: copy init_static from rustc CompileTimeEvaluator to try to fix …

680bcf8

…uninitialized static error

Maybe prevent marking statics as immutable

878d666

Fix init_static

f55d077

travis: cache build dir

ac42af3

Fix it

a6cdd8a

Fix some more tests with some unsafe code

e09a996

Remove unsafe code

73658c4

Some cleanups

7bd20f1

Update Cargo.lock and some improvements

9d186d9

Fixup various things needed to get miri working on rustc

95a8771

Fix alignment issue

d4f30aa

Dont claim to have marked static initialized

4ecbcc5

Mirror function rename in rustc

3f1b2bd

Rustup

f48fed7

Rustup to rustc 1.27.0-nightly (79252ff4e 2018-04-29)

ba1c88a

Merge pull request #367 from bjorn3/rustup2

ee2a3a1

Rustup to rustc 1.27.0-nightly (79252ff4e 2018-04-29)

bjorn3 suggested changes May 2, 2018

View reviewed changes

Alexander Regueiro added 2 commits May 3, 2018 21:58

Minor fix to get build working

9156953

Fixed build for latest nightly

3d8c7a8

Rustup

b0d3dae

bjorn3 mentioned this pull request May 7, 2018

Miri crashes on fat ptr to thin ptr conversion rust-lang/rust#50495

Closed

bjorn3 and others added 2 commits May 7, 2018 10:38

Fix allocator api and temporarily disable validation_op

6bc35f7

Merge branch 'rustup' into alloc_fix

42ab135

eddyb reviewed May 7, 2018

View reviewed changes

oli-obk and others added 6 commits May 7, 2018 10:44

Dedup tag reading

860e2b8

Use a deterministic method for executing the start lang item

0eb3c18

Merge branch 'rustup' into nightly-fix

7c45bfc

Merge pull request #372 from alexreg/nightly-fix

696dda8

Fixed build for latest nightly (again)

Merge pull request #373 from bjorn3/alloc_fix

3ffc237

Alloc api fix and tmp disable validation_op because of ICE

Hide some warnings/Fix build

0a88698

oli-obk added 3 commits May 7, 2018 18:02

Implement missing intrinsic

6653bb3

Pointers must be valid, even pointers to zsts

e0e1bd7

Fix some bad conversions on 32 bit emulation

ce7605c

oli-obk added 2 commits May 9, 2018 13:43

Disable cargo miri test for now

a4fdcd2

Update the rustc_tests crate

c05d570

oli-obk merged commit 1996a1f into master May 9, 2018

oli-obk deleted the rustup branch May 9, 2018 12:30

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Rustup #368

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bjorn3 commented May 7, 2018

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bjorn3 commented May 6, 2018 •

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bjorn3 commented May 9, 2018 •

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