Auto merge of #53530 - kennytm:rollup, r=kennytm

Rollup of 17 pull requests

Successful merges:

 - #53030 (Updated RELEASES.md for 1.29.0)
 - #53104 (expand the documentation on the `Unpin` trait)
 - #53213 (Stabilize IP associated constants)
 - #53296 (When closure with no arguments was expected, suggest wrapping)
 - #53329 (Replace usages of ptr::offset with ptr::{add,sub}.)
 - #53363 (add individual docs to `core::num::NonZero*`)
 - #53370 (Stabilize macro_vis_matcher)
 - #53393 (Mark libserialize functions as inline)
 - #53405 (restore the page title after escaping out of a search)
 - #53452 (Change target triple used to check for lldb in build-manifest)
 - #53462 (Document Box::into_raw returns non-null ptr)
 - #53465 (Remove LinkMeta struct)
 - #53492 (update lld submodule to include RISCV patch)
 - #53496 (Fix typos found by codespell.)
 - #53521 (syntax: Optimize some literal parsing)
 - #53540 (Moved issue-53157.rs into src/test/ui/consts/const-eval/)
 - #53551 (Avoid some Place clones.)

Failed merges:

r? @ghost

RELEASES.md

@@ -1,3 +1,78 @@
+Version 1.29.0 (2018-09-13)
+==========================
+
+Compiler
+--------
+- [Bumped minimum LLVM version to 5.0.][51899]
+- [Added `powerpc64le-unknown-linux-musl` target.][51619]
+- [Added `aarch64-unknown-hermit` and `x86_64-unknown-hermit` targets.][52861]
+
+Libraries
+---------
+- [`Once::call_once` now no longer requires `Once` to be `'static`.][52239]
+- [`BuildHasherDefault` now implements `PartialEq` and `Eq`.][52402]
+- [`Box<CStr>`, `Box<OsStr>`, and `Box<Path>` now implement `Clone`.][51912]
+- [Implemented `PartialEq<&str>` for `OsString` and `PartialEq<OsString>`
+  for `&str`.][51178]
+- [`Cell<T>` now allows `T` to be unsized.][50494]
+- [`SocketAddr` is now stable on Redox.][52656]
+
+Stabilized APIs
+---------------
+- [`Arc::downcast`]
+- [`Iterator::flatten`]
+- [`Rc::downcast`]
+
+Cargo
+-----
+- [Cargo can silently fix some bad lockfiles ][cargo/5831] You can use
+  `--locked` to disable this behaviour.
+- [`cargo-install` will now allow you to cross compile an install
+  using `--target`][cargo/5614]
+- [Added the `cargo-fix` subcommand to automatically move project code from
+  2015 edition to 2018.][cargo/5723]
+
+Misc
+----
+- [`rustdoc` now has the `--cap-lints` option which demotes all lints above
+  the specified level to that level.][52354] For example `--cap-lints warn`
+  will demote `deny` and `forbid` lints to `warn`.
+- [`rustc` and `rustdoc` will now have the exit code of `1` if compilation
+  fails, and `101` if there is a panic.][52197]
+
+Compatibility Notes
+-------------------
+- [`str::{slice_unchecked, slice_unchecked_mut}` are now deprecated.][51807]
+  Use `str::get_unchecked(begin..end)` instead.
+- [`std::env::home_dir` is now deprecated for its unintuitive behaviour.][51656]
+  Consider using the `home_dir` function from
+  https://crates.io/crates/dirs instead.
+- [`rustc` will no longer silently ignore invalid data in target spec.][52330]
+
+[52861]: https://github.com/rust-lang/rust/pull/52861/
+[52656]: https://github.com/rust-lang/rust/pull/52656/
+[52239]: https://github.com/rust-lang/rust/pull/52239/
+[52330]: https://github.com/rust-lang/rust/pull/52330/
+[52354]: https://github.com/rust-lang/rust/pull/52354/
+[52402]: https://github.com/rust-lang/rust/pull/52402/
+[52103]: https://github.com/rust-lang/rust/pull/52103/
+[52197]: https://github.com/rust-lang/rust/pull/52197/
+[51807]: https://github.com/rust-lang/rust/pull/51807/
+[51899]: https://github.com/rust-lang/rust/pull/51899/
+[51912]: https://github.com/rust-lang/rust/pull/51912/
+[51511]: https://github.com/rust-lang/rust/pull/51511/
+[51619]: https://github.com/rust-lang/rust/pull/51619/
+[51656]: https://github.com/rust-lang/rust/pull/51656/
+[51178]: https://github.com/rust-lang/rust/pull/51178/
+[50494]: https://github.com/rust-lang/rust/pull/50494/
+[cargo/5614]: https://github.com/rust-lang/cargo/pull/5614/
+[cargo/5723]: https://github.com/rust-lang/cargo/pull/5723/
+[cargo/5831]: https://github.com/rust-lang/cargo/pull/5831/
+[`Arc::downcast`]: https://doc.rust-lang.org/std/sync/struct.Arc.html#method.downcast
+[`Iterator::flatten`]: https://doc.rust-lang.org/std/iter/trait.Iterator.html#method.flatten
+[`Rc::downcast`]: https://doc.rust-lang.org/std/rc/struct.Rc.html#method.downcast
+
+
 Version 1.28.0 (2018-08-02)
 ===========================
 

src/ci/docker/scripts/musl.sh

@@ -32,7 +32,7 @@ shift
 
 export CFLAGS="-fPIC $CFLAGS"
 
-# FIXME: remove the patch when upate to 1.1.20
+# FIXME: remove the patch when updating to 1.1.20
 MUSL=musl-1.1.19
 
 # may have been downloaded in a previous run

src/doc/index.md

@@ -34,7 +34,7 @@ minimum. It also includes exercises!
 
 # Use Rust
 
-Once you've gotten familliar with the language, these resources can help you
+Once you've gotten familiar with the language, these resources can help you
 when you're actually using it day-to-day.
 
 ## The Standard Library

src/doc/rustc/src/codegen-options/index.md

@@ -153,7 +153,7 @@ This option allows you to put extra data in each output filename.
 This flag lets you control how many threads are used when doing
 code generation.
 
-Increasing paralellism may speed up compile times, but may also
+Increasing parallelism may speed up compile times, but may also
 produce slower code.
 
 ## remark

src/doc/rustc/src/lints/listing/deny-by-default.md

@@ -56,7 +56,7 @@ mod m {
     pub struct S(u8);
     
     fn f() {
-        // this is trying to use S from the 'use' line, but becuase the `u8` is
+        // this is trying to use S from the 'use' line, but because the `u8` is
         // not pub, it is private
         ::S;
     }
@@ -103,7 +103,7 @@ This warning can always be fixed by removing the unused pattern in the
 
 ## mutable-transmutes
 
-This lint catches transmuting from `&T` to `&mut T` becuase it is undefined
+This lint catches transmuting from `&T` to `&mut T` because it is undefined
 behavior. Some example code that triggers this lint:
 
 ```rust,ignore

src/doc/rustdoc/src/unstable-features.md

@@ -1,6 +1,6 @@
 # Unstable features
 
-Rustdoc is under active developement, and like the Rust compiler, some features are only available
+Rustdoc is under active development, and like the Rust compiler, some features are only available
 on the nightly releases. Some of these are new and need some more testing before they're able to get
 released to the world at large, and some of them are tied to features in the Rust compiler that are
 themselves unstable. Several features here require a matching `#![feature(...)]` attribute to

src/doc/unstable-book/src/language-features/infer-outlives-requirements.md

@@ -6,12 +6,12 @@ The tracking issue for this feature is: [#44493]
 
 ------------------------
 The `infer_outlives_requirements` feature indicates that certain
-outlives requirements can be infered by the compiler rather than
+outlives requirements can be inferred by the compiler rather than
 stating them explicitly.
 
 For example, currently generic struct definitions that contain
 references, require where-clauses of the form T: 'a. By using
-this feature the outlives predicates will be infered, although
+this feature the outlives predicates will be inferred, although
 they may still be written explicitly.
 
 ```rust,ignore (pseudo-Rust)

src/doc/unstable-book/src/language-features/infer-static-outlives-requirements.md

@@ -6,15 +6,15 @@ The tracking issue for this feature is: [#44493]
 
 ------------------------
 The `infer_static_outlives_requirements` feature indicates that certain
-`'static` outlives requirements can be infered by the compiler rather than
+`'static` outlives requirements can be inferred by the compiler rather than
 stating them explicitly.
 
 Note: It is an accompanying feature to `infer_outlives_requirements`,
 which must be enabled to infer outlives requirements.
 
 For example, currently generic struct definitions that contain
 references, require where-clauses of the form T: 'static. By using
-this feature the outlives predicates will be infered, although
+this feature the outlives predicates will be inferred, although
 they may still be written explicitly.
 
 ```rust,ignore (pseudo-Rust)

src/doc/unstable-book/src/language-features/plugin.md

@@ -183,7 +183,6 @@ that warns about any item named `lintme`.
 ```rust,ignore
 #![feature(plugin_registrar)]
 #![feature(box_syntax, rustc_private)]
-#![feature(macro_vis_matcher)]
 #![feature(macro_at_most_once_rep)]
 
 extern crate syntax;

src/liballoc/alloc.rs

@@ -245,7 +245,7 @@ mod tests {
                 .unwrap_or_else(|_| handle_alloc_error(layout));
 
             let mut i = ptr.cast::<u8>().as_ptr();
-            let end = i.offset(layout.size() as isize);
+            let end = i.add(layout.size());
             while i < end {
                 assert_eq!(*i, 0);
                 i = i.offset(1);

src/liballoc/boxed.rs

@@ -126,7 +126,9 @@ impl<T: ?Sized> Box<T> {
         Box(Unique::new_unchecked(raw))
     }
 
-    /// Consumes the `Box`, returning the wrapped raw pointer.
+    /// Consumes the `Box`, returning a wrapped raw pointer.
+    ///
+    /// The pointer will be properly aligned and non-null.
     ///
     /// After calling this function, the caller is responsible for the
     /// memory previously managed by the `Box`. In particular, the
@@ -704,7 +706,7 @@ impl<T: Clone> Clone for Box<[T]> {
         impl<T> Drop for BoxBuilder<T> {
             fn drop(&mut self) {
                 let mut data = self.data.ptr();
-                let max = unsafe { data.offset(self.len as isize) };
+                let max = unsafe { data.add(self.len) };
 
                 while data != max {
                     unsafe {

src/liballoc/collections/btree/node.rs

@@ -1151,12 +1151,12 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Leaf>, marker::KV>
             let new_len = self.node.len() - self.idx - 1;
 
             ptr::copy_nonoverlapping(
-                self.node.keys().as_ptr().offset(self.idx as isize + 1),
+                self.node.keys().as_ptr().add(self.idx + 1),
                 new_node.keys.as_mut_ptr(),
                 new_len
             );
             ptr::copy_nonoverlapping(
-                self.node.vals().as_ptr().offset(self.idx as isize + 1),
+                self.node.vals().as_ptr().add(self.idx + 1),
                 new_node.vals.as_mut_ptr(),
                 new_len
             );
@@ -1209,17 +1209,17 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
             let new_len = self.node.len() - self.idx - 1;
 
             ptr::copy_nonoverlapping(
-                self.node.keys().as_ptr().offset(self.idx as isize + 1),
+                self.node.keys().as_ptr().add(self.idx + 1),
                 new_node.data.keys.as_mut_ptr(),
                 new_len
             );
             ptr::copy_nonoverlapping(
-                self.node.vals().as_ptr().offset(self.idx as isize + 1),
+                self.node.vals().as_ptr().add(self.idx + 1),
                 new_node.data.vals.as_mut_ptr(),
                 new_len
             );
             ptr::copy_nonoverlapping(
-                self.node.as_internal().edges.as_ptr().offset(self.idx as isize + 1),
+                self.node.as_internal().edges.as_ptr().add(self.idx + 1),
                 new_node.edges.as_mut_ptr(),
                 new_len + 1
             );
@@ -1283,14 +1283,14 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
                        slice_remove(self.node.keys_mut(), self.idx));
             ptr::copy_nonoverlapping(
                 right_node.keys().as_ptr(),
-                left_node.keys_mut().as_mut_ptr().offset(left_len as isize + 1),
+                left_node.keys_mut().as_mut_ptr().add(left_len + 1),
                 right_len
             );
             ptr::write(left_node.vals_mut().get_unchecked_mut(left_len),
                        slice_remove(self.node.vals_mut(), self.idx));
             ptr::copy_nonoverlapping(
                 right_node.vals().as_ptr(),
-                left_node.vals_mut().as_mut_ptr().offset(left_len as isize + 1),
+                left_node.vals_mut().as_mut_ptr().add(left_len + 1),
                 right_len
             );
 
@@ -1309,7 +1309,7 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
                              .as_internal_mut()
                              .edges
                              .as_mut_ptr()
-                             .offset(left_len as isize + 1),
+                             .add(left_len + 1),
                     right_len + 1
                 );
 
@@ -1394,10 +1394,10 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
 
                 // Make room for stolen elements in the right child.
                 ptr::copy(right_kv.0,
-                          right_kv.0.offset(count as isize),
+                          right_kv.0.add(count),
                           right_len);
                 ptr::copy(right_kv.1,
-                          right_kv.1.offset(count as isize),
+                          right_kv.1.add(count),
                           right_len);
 
                 // Move elements from the left child to the right one.
@@ -1418,7 +1418,7 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
                     // Make room for stolen edges.
                     let right_edges = right.reborrow_mut().as_internal_mut().edges.as_mut_ptr();
                     ptr::copy(right_edges,
-                              right_edges.offset(count as isize),
+                              right_edges.add(count),
                               right_len + 1);
                     right.correct_childrens_parent_links(count, count + right_len + 1);
 
@@ -1463,10 +1463,10 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
                 move_kv(right_kv, count - 1, parent_kv, 0, 1);
 
                 // Fix right indexing
-                ptr::copy(right_kv.0.offset(count as isize),
+                ptr::copy(right_kv.0.add(count),
                           right_kv.0,
                           new_right_len);
-                ptr::copy(right_kv.1.offset(count as isize),
+                ptr::copy(right_kv.1.add(count),
                           right_kv.1,
                           new_right_len);
             }
@@ -1480,7 +1480,7 @@ impl<'a, K, V> Handle<NodeRef<marker::Mut<'a>, K, V, marker::Internal>, marker::
 
                     // Fix right indexing.
                     let right_edges = right.reborrow_mut().as_internal_mut().edges.as_mut_ptr();
-                    ptr::copy(right_edges.offset(count as isize),
+                    ptr::copy(right_edges.add(count),
                               right_edges,
                               new_right_len + 1);
                     right.correct_childrens_parent_links(0, new_right_len + 1);
@@ -1497,11 +1497,11 @@ unsafe fn move_kv<K, V>(
     dest: (*mut K, *mut V), dest_offset: usize,
     count: usize)
 {
-    ptr::copy_nonoverlapping(source.0.offset(source_offset as isize),
-                             dest.0.offset(dest_offset as isize),
+    ptr::copy_nonoverlapping(source.0.add(source_offset),
+                             dest.0.add(dest_offset),
                              count);
-    ptr::copy_nonoverlapping(source.1.offset(source_offset as isize),
-                             dest.1.offset(dest_offset as isize),
+    ptr::copy_nonoverlapping(source.1.add(source_offset),
+                             dest.1.add(dest_offset),
                              count);
 }
 
@@ -1513,8 +1513,8 @@ unsafe fn move_edges<K, V>(
 {
     let source_ptr = source.as_internal_mut().edges.as_mut_ptr();
     let dest_ptr = dest.as_internal_mut().edges.as_mut_ptr();
-    ptr::copy_nonoverlapping(source_ptr.offset(source_offset as isize),
-                             dest_ptr.offset(dest_offset as isize),
+    ptr::copy_nonoverlapping(source_ptr.add(source_offset),
+                             dest_ptr.add(dest_offset),
                              count);
     dest.correct_childrens_parent_links(dest_offset, dest_offset + count);
 }
@@ -1604,8 +1604,8 @@ pub mod marker {
 
 unsafe fn slice_insert<T>(slice: &mut [T], idx: usize, val: T) {
     ptr::copy(
-        slice.as_ptr().offset(idx as isize),
-        slice.as_mut_ptr().offset(idx as isize + 1),
+        slice.as_ptr().add(idx),
+        slice.as_mut_ptr().add(idx + 1),
         slice.len() - idx
     );
     ptr::write(slice.get_unchecked_mut(idx), val);
@@ -1614,8 +1614,8 @@ unsafe fn slice_insert<T>(slice: &mut [T], idx: usize, val: T) {
 unsafe fn slice_remove<T>(slice: &mut [T], idx: usize) -> T {
     let ret = ptr::read(slice.get_unchecked(idx));
     ptr::copy(
-        slice.as_ptr().offset(idx as isize + 1),
-        slice.as_mut_ptr().offset(idx as isize),
+        slice.as_ptr().add(idx + 1),
+        slice.as_mut_ptr().add(idx),
         slice.len() - idx - 1
     );
     ret