ICE: "unexpected path" when reporting type annotations needed

[Runi-c]

playground repro
Does not repro on beta or stable

Code

type HashMap<K, V> = hashbrown::HashMap<K, V, ahash::RandomState>;
fn main() {
    let vec = HashMap::new();
}

Meta

rustc --version --verbose:

rustc 1.63.0-nightly (50b00252a 2022-06-06)
binary: rustc
commit-hash: 50b00252aeb77b10db04d65dc9e12ce758def4b5
commit-date: 2022-06-06
host: x86_64-pc-windows-msvc
release: 1.63.0-nightly
LLVM version: 14.0.5

Error output

error: internal compiler error: compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs:856:33: unexpected path: def=hashbrown::HashMap substs=[_, _, ahash::RandomState, hashbrown::raw::alloc::inner::Global] path=Path { span: src/main.rs:3:15: 3:22 (#0), res: Def(TyAlias, DefId(0:3 ~ playground[3ae5]::HashMap)), segments: [PathSegment { ident: HashMap#0, hir_id: Some(HirId { owner: DefId(0:6 ~ playground[3ae5]::main), local_id: 2 }), res: Some(Err), args: None, infer_args: true }] }

Backtrace

thread 'rustc' panicked at 'Box<dyn Any>', /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/compiler/rustc_errors/src/lib.rs:1335:9
stack backtrace:
   0:     0x7fa474a1009d - std::backtrace_rs::backtrace::libunwind::trace::h2a8892c156585d66
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
   1:     0x7fa474a1009d - std::backtrace_rs::backtrace::trace_unsynchronized::h918c401bc86eed40
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
   2:     0x7fa474a1009d - std::sys_common::backtrace::_print_fmt::h2a52b4cb52dc84fb
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/sys_common/backtrace.rs:66:5
   3:     0x7fa474a1009d - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h2f5ce3ea50e5b1d6
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/sys_common/backtrace.rs:45:22
   4:     0x7fa474a6be2c - core::fmt::write::h48a5b18f44037270
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/core/src/fmt/mod.rs:1196:17
   5:     0x7fa474a01791 - std::io::Write::write_fmt::h1d1b08935a2fcf4b
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/io/mod.rs:1654:15
   6:     0x7fa474a12d75 - std::sys_common::backtrace::_print::h46d4f4f2d0dbcce0
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/sys_common/backtrace.rs:48:5
   7:     0x7fa474a12d75 - std::sys_common::backtrace::print::h8334e6fa27a1dde4
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/sys_common/backtrace.rs:35:9
   8:     0x7fa474a12d75 - std::panicking::default_hook::{{closure}}::hc13c7ff820b0fe22
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/panicking.rs:295:22
   9:     0x7fa474a12a96 - std::panicking::default_hook::h100ba67c99329739
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/panicking.rs:314:9
  10:     0x7fa4751e86c1 - rustc_driver[30390a19e428bc19]::DEFAULT_HOOK::{closure#0}::{closure#0}
  11:     0x7fa474a1344a - std::panicking::rust_panic_with_hook::h0a6a04da5fd1d45f
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/panicking.rs:702:17
  12:     0x7fa476282d71 - std[41be3fa6aba1786e]::panicking::begin_panic::<rustc_errors[e8101b8b045aac39]::ExplicitBug>::{closure#0}
  13:     0x7fa476282786 - std[41be3fa6aba1786e]::sys_common::backtrace::__rust_end_short_backtrace::<std[41be3fa6aba1786e]::panicking::begin_panic<rustc_errors[e8101b8b045aac39]::ExplicitBug>::{closure#0}, !>
  14:     0x7fa4761ff036 - std[41be3fa6aba1786e]::panicking::begin_panic::<rustc_errors[e8101b8b045aac39]::ExplicitBug>
  15:     0x7fa4762254a6 - std[41be3fa6aba1786e]::panic::panic_any::<rustc_errors[e8101b8b045aac39]::ExplicitBug>
  16:     0x7fa476224f45 - <rustc_errors[e8101b8b045aac39]::HandlerInner>::bug::<&alloc[40ba6c0f2dbdab1e]::string::String>
  17:     0x7fa4762232a0 - <rustc_errors[e8101b8b045aac39]::Handler>::bug::<&alloc[40ba6c0f2dbdab1e]::string::String>
  18:     0x7fa47627fd4d - rustc_middle[70296c36ca3d2602]::ty::context::tls::with_opt::<rustc_middle[70296c36ca3d2602]::util::bug::opt_span_bug_fmt<rustc_span[db009ef5852f774a]::span_encoding::Span>::{closure#0}, ()>
  19:     0x7fa47627fe46 - rustc_middle[70296c36ca3d2602]::util::bug::opt_span_bug_fmt::<rustc_span[db009ef5852f774a]::span_encoding::Span>
  20:     0x7fa47627fdc3 - rustc_middle[70296c36ca3d2602]::util::bug::bug_fmt
  21:     0x7fa47615615b - <rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor>::path_inferred_subst_iter
  22:     0x7fa4761566e3 - <rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[a412caeb98c40378]::intravisit::Visitor>::visit_expr
  23:     0x7fa47615656c - <rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[a412caeb98c40378]::intravisit::Visitor>::visit_expr
  24:     0x7fa47616cc0c - rustc_hir[a412caeb98c40378]::intravisit::walk_local::<rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor>
  25:     0x7fa4761561e8 - <rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[a412caeb98c40378]::intravisit::Visitor>::visit_local
  26:     0x7fa47616ca57 - rustc_hir[a412caeb98c40378]::intravisit::walk_block::<rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor>
  27:     0x7fa47615657e - <rustc_infer[9428db4faa363431]::infer::error_reporting::need_type_info::FindInferSourceVisitor as rustc_hir[a412caeb98c40378]::intravisit::Visitor>::visit_expr
  28:     0x7fa476115284 - <rustc_infer[9428db4faa363431]::infer::InferCtxt>::emit_inference_failure_err
  29:     0x7fa476067d66 - <rustc_infer[9428db4faa363431]::infer::InferCtxt as rustc_trait_selection[d0fea7d99d927b2c]::traits::error_reporting::InferCtxtPrivExt>::maybe_report_ambiguity
  30:     0x7fa47605bd87 - <rustc_infer[9428db4faa363431]::infer::InferCtxt as rustc_trait_selection[d0fea7d99d927b2c]::traits::error_reporting::InferCtxtExt>::report_fulfillment_errors
  31:     0x7fa4767aa094 - <rustc_infer[9428db4faa363431]::infer::InferCtxtBuilder>::enter::<&rustc_middle[70296c36ca3d2602]::ty::context::TypeckResults, <rustc_typeck[a3bfe43d381eec93]::check::inherited::InheritedBuilder>::enter<rustc_typeck[a3bfe43d381eec93]::check::typeck_with_fallback<rustc_typeck[a3bfe43d381eec93]::check::typeck::{closure#0}>::{closure#1}, &rustc_middle[70296c36ca3d2602]::ty::context::TypeckResults>::{closure#0}>
  32:     0x7fa47673c2fa - rustc_typeck[a3bfe43d381eec93]::check::typeck
  33:     0x7fa476d616d4 - rustc_query_system[c8ac68b744dd57fa]::query::plumbing::try_execute_query::<rustc_query_impl[51e1f4158b96ee22]::plumbing::QueryCtxt, rustc_query_system[c8ac68b744dd57fa]::query::caches::DefaultCache<rustc_span[db009ef5852f774a]::def_id::LocalDefId, &rustc_middle[70296c36ca3d2602]::ty::context::TypeckResults>>
  34:     0x7fa476c8e03e - <rustc_query_impl[51e1f4158b96ee22]::Queries as rustc_middle[70296c36ca3d2602]::ty::query::QueryEngine>::typeck
  35:     0x7fa4767faf98 - <rustc_middle[70296c36ca3d2602]::hir::map::Map>::par_body_owners::<rustc_typeck[a3bfe43d381eec93]::check::typeck_item_bodies::{closure#0}>
  36:     0x7fa47760074c - rustc_typeck[a3bfe43d381eec93]::check::typeck_item_bodies
  37:     0x7fa47790bfbc - rustc_query_system[c8ac68b744dd57fa]::query::plumbing::try_execute_query::<rustc_query_impl[51e1f4158b96ee22]::plumbing::QueryCtxt, rustc_query_system[c8ac68b744dd57fa]::query::caches::DefaultCache<(), ()>>
  38:     0x7fa477936841 - rustc_query_system[c8ac68b744dd57fa]::query::plumbing::get_query::<rustc_query_impl[51e1f4158b96ee22]::queries::typeck_item_bodies, rustc_query_impl[51e1f4158b96ee22]::plumbing::QueryCtxt>
  39:     0x7fa477637133 - <rustc_session[f622d47d49ca7e5c]::session::Session>::time::<(), rustc_typeck[a3bfe43d381eec93]::check_crate::{closure#7}>
  40:     0x7fa477623d5b - rustc_typeck[a3bfe43d381eec93]::check_crate
  41:     0x7fa4773e11c7 - rustc_interface[30bf44ec34e2f97]::passes::analysis
  42:     0x7fa4779014ef - rustc_query_system[c8ac68b744dd57fa]::query::plumbing::try_execute_query::<rustc_query_impl[51e1f4158b96ee22]::plumbing::QueryCtxt, rustc_query_system[c8ac68b744dd57fa]::query::caches::DefaultCache<(), core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>>
  43:     0x7fa477948dfe - rustc_query_system[c8ac68b744dd57fa]::query::plumbing::get_query::<rustc_query_impl[51e1f4158b96ee22]::queries::analysis, rustc_query_impl[51e1f4158b96ee22]::plumbing::QueryCtxt>
  44:     0x7fa47739e547 - <rustc_interface[30bf44ec34e2f97]::passes::QueryContext>::enter::<rustc_driver[30390a19e428bc19]::run_compiler::{closure#1}::{closure#2}::{closure#3}, core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>
  45:     0x7fa47738870f - <rustc_interface[30bf44ec34e2f97]::interface::Compiler>::enter::<rustc_driver[30390a19e428bc19]::run_compiler::{closure#1}::{closure#2}, core[42e67a1b4ba6212c]::result::Result<core[42e67a1b4ba6212c]::option::Option<rustc_interface[30bf44ec34e2f97]::queries::Linker>, rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>
  46:     0x7fa4773b1d5f - rustc_span[db009ef5852f774a]::with_source_map::<core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>, rustc_interface[30bf44ec34e2f97]::interface::create_compiler_and_run<core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>, rustc_driver[30390a19e428bc19]::run_compiler::{closure#1}>::{closure#1}>
  47:     0x7fa4773895a2 - <scoped_tls[2965e6335b4e6f3e]::ScopedKey<rustc_span[db009ef5852f774a]::SessionGlobals>>::set::<rustc_interface[30bf44ec34e2f97]::interface::run_compiler<core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>, rustc_driver[30390a19e428bc19]::run_compiler::{closure#1}>::{closure#0}, core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>
  48:     0x7fa47739ebcf - std[41be3fa6aba1786e]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[30bf44ec34e2f97]::util::run_in_thread_pool_with_globals<rustc_interface[30bf44ec34e2f97]::interface::run_compiler<core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>, rustc_driver[30390a19e428bc19]::run_compiler::{closure#1}>::{closure#0}, core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>::{closure#0}, core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>
  49:     0x7fa47739ed39 - <<std[41be3fa6aba1786e]::thread::Builder>::spawn_unchecked_<rustc_interface[30bf44ec34e2f97]::util::run_in_thread_pool_with_globals<rustc_interface[30bf44ec34e2f97]::interface::run_compiler<core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>, rustc_driver[30390a19e428bc19]::run_compiler::{closure#1}>::{closure#0}, core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>::{closure#0}, core[42e67a1b4ba6212c]::result::Result<(), rustc_errors[e8101b8b045aac39]::ErrorGuaranteed>>::{closure#1} as core[42e67a1b4ba6212c]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
  50:     0x7fa474a1d373 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::ha070fd431c3387e9
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/alloc/src/boxed.rs:1951:9
  51:     0x7fa474a1d373 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd87ab2d0201316b5
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/alloc/src/boxed.rs:1951:9
  52:     0x7fa474a1d373 - std::sys::unix::thread::Thread::new::thread_start::ha32118aaa6c8a9be
                               at /rustc/50b00252aeb77b10db04d65dc9e12ce758def4b5/library/std/src/sys/unix/thread.rs:108:17
  53:     0x7fa474943609 - start_thread
  54:     0x7fa474866133 - clone
  55:                0x0 - <unknown>

note: the compiler unexpectedly panicked. this is a bug.

note: we would appreciate a bug report: https://github.com/rust-lang/rust/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md

note: rustc 1.63.0-nightly (50b00252a 2022-06-06) running on x86_64-unknown-linux-gnu

note: compiler flags: --crate-type bin -C embed-bitcode=no -C codegen-units=1 -C debuginfo=2

note: some of the compiler flags provided by cargo are hidden

query stack during panic:
#0 [typeck] type-checking `main`
#1 [typeck_item_bodies] type-checking all item bodies
#2 [analysis] running analysis passes on this crate
end of query stack

[Runi-c]

maybe it's because I didn't know what I was looking for before, but I only just now found a couple other issues about this bug, this is probably a duplicate. My bad! Seems to be a shorter repro than the others though so that might be useful

[compiler-errors]

Possibly fixed by #97703

[infiniwave]

Likely duplicated by #97885, #97902, and #97806