According to http://www.musl-libc.org/download.html:

This release corrects regressions in glob() and armv4t build failure
introduced in the previous release, and includes an important bug fix
for posix_spawnp in the presence of a large PATH environment variable.

Fix for `ENOSYS` when calling `pipe2`, rust-lang/jobserver-rs#5.

r? @alexcrichton

This test fails on APFS filesystems with the following error:

mkdir: /Users/ryan/Code/rust/build/x86_64-apple-darwin/test/run-make/linker-output-non-utf8.stage2-x86_64-apple-darwin/zzz�: Illegal byte sequence

This is due to APFS now requiring that all paths are valid UTF-8. As
APFS will be the default filesystem for all new Darwin-based systems the
most straightforward fix is to skip this test on Darwin as well as
Windows.

The Windows situation is more complicated than I realised

Hi. Fixed typo: contained -> content

 - Fix panic string in `check_ast_crate`.

When gluing two tokens, the second of which is joint, the result should also be
joint.
This fixes an issue with joining three `Dot` tokens to make a `DotDotDot` - the
intermediate `DotDot` would not be joint and therefore we would not attempt to
glue the last `Dot` token, yielding `.. .` instead of `...`.

Closes rust-lang#36792. Closes rust-lang#38091. Closes rust-lang#39687. Closes rust-lang#42148. Closes rust-lang#42956.

Just like on UNIX systems, we need to use sysconf() to obtain the number
of CPUs. Extend the existing cfg()'s to match CloudABI as well.

…-lang#47351).

Closes rust-lang#43105.

…xcrichton

Implement AsRef<Path> for Component

Fixes rust-lang#41866

rustfmt libarena/lib.rs

Note: it's my very first pull request. I'm trying to do something very simple to see how it works here, even if it's a tiny change or maybe it's not correct (sorry if it is the case).

r? @nrc

…r=nrc

Fix nested imports not included in the save_analysis output

This PR fixes rust-lang#46823.

The bug was caused by the old access level checking code, which checked against the root UseTree even for nested trees. The problem with that is, for nested trees the root is lowered as an empty `ListStem`, which is not reachable by definition. The new code computes the access level with each tree's own ID, and with the root tree's visibility.

I tested this manually and it works, but I'm not really satisfied with that. I looked at the existing tests though, and no one checked for the save_analysis output as far as I can see. How should I proceed with that? I think having a test about this would be really nice.

…omatsakis

Show only stderr diff when a ui test fails

Addresses rust-lang#46826.

This PR will print the normalized output if expected text is empty otherwise it will just print the diff.

Should we also show a few (actual == expected) lines above & below when displaying the diff? What about indicating line numbers as well so one can quickly check mismatch lines in .stderr file?

Add i586-unknown-linux-musl target

Update musl to 1.1.18

According to http://www.musl-libc.org/download.html:

This release corrects regressions in glob() and armv4t build failure
introduced in the previous release, and includes an important bug fix
for posix_spawnp in the presence of a large PATH environment variable.

…hton

Update jobserver to 0.1.9

Fix for `ENOSYS` when calling `pipe2`, rust-lang/jobserver-rs#5.

r? @alexcrichton

…-test-on-apple, r=kennytm

Skip linker-output-non-utf8 test on Apple

This test fails on APFS filesystems with the following error:

```shell
mkdir: /Users/ryan/Code/rust/build/x86_64-apple-darwin/test/run-make/linker-output-non-utf8.stage2-x86_64-apple-darwin/zzz�: Illegal byte sequence
```

The mkdir does succeed on an HFS+ volume mounted on the same system:
```shell
$ mkdir zzz$$'\xff'
$ ls
zzz47432\xff
```

This is due to APFS now requiring that all paths are valid UTF-8. As APFS will be the default filesystem for all new Darwin-based systems the most straightforward fix is to skip this test on Darwin as well as Windows.

Treat #[path] files as mod.rs files

Fixes rust-lang#46936, cc @briansmith, @SergioBenitez, @nikomatsakis.

This (insta-stable) change treats files included via `#[path = "bla.rs"] mod foo;` as though they were `mod.rs` files. Namely, it allows them to include `mod` statements and looks for the child modules in sibling directories, rather than in relative `modname/childmodule.rs` files as happens for non-`mod.rs` files.

This change makes the `non_modrs_mods` feature backwards compatible with the existing usage in https://github.com/briansmith/ring, several versions of which are currently broken in beta. If we decide to merge, this change should be backported to beta.

cc rust-lang#37872

r? @jseyfried

…ddyb

Use copy/clone closures to simplify calendar test

Split out from rust-lang#47304

r? @eddyb

Don't track local_needs_drop separately in qualify_consts.

None

…nnytm

Fix panic strings.

 - Fix panic string in `check_ast_crate`.
 - Update panic string for Duration subtraction on overflow/underflow.

Not sure if the changes to `Duration` are helpful/needed. Mostly just a nit.
Otherwise this is just a one character change :)

On another note: I hit the panic in `check_ast_crate` when compiling
[m-labs/smoltcp] with the following:

```
cargo test --doc --no-default-features --features "std socket-raw"`
```

[m-labs/smoltcp]: https://github.com/m-labs/smoltcp

fix typo rwlock.rs

Hi. Fixed typo: contained -> content

Pre-allocate in fs::read and fs::read_string

This is a simpler alternative to rust-lang#46340 and rust-lang#45928, as requested by the libs team.

Use the new fs_read_write functions in rustc internals

Uses `fs::read` and `fs::write` (added by rust-lang#45837) where appropriate, to simplify code and dog-food these new APIs.  This also improves performance, when combined with rust-lang#47324.

…oading, r=alexcrichton

Add -Ztime-passes line for dep-graph loading.

We measure how much time the background thread spends on loading the dep-graph but not how long the main thread is blocked while the background thread is still working. Let's change that!

Fix typo.

Glued tokens can themselves be joint.

When gluing two tokens, the second of which is joint, the result should also be
joint.
This fixes an issue with joining three `Dot` tokens to make a `DotDotDot` - the
intermediate `DotDot` would not be joint and therefore we would not attempt to
glue the last `Dot` token, yielding `.. .` instead of `...`.

r? @jseyfried

Add tests to fixed issues.

Closes rust-lang#36792. Closes rust-lang#38091. Closes rust-lang#39687. Closes rust-lang#42148. Closes rust-lang#42956.

Make libtest build on CloudABI.

Just like on UNIX systems, we need to use sysconf() to obtain the number
of CPUs. Extend the existing cfg()'s to match CloudABI as well.

…omez

Fix docs for OsStr

At present, there are two small issues with the [docs](https://doc.rust-lang.org/std/ffi/struct.OsStr.html) for std::ffi::OsStr:
- The docs say "OsStr is to OsString as String is to &str: the former in each pair are borrowed references; the latter are owned strings.". The latter pair is mixed up: String is the owned variant whereas &str is the borrowed reference.
- The doc links to String and &str are broken and render as [String] and [&str].

This PR fixes these issues.

Re-enable num tests on wasm

Issue rust-lang#42630 was closed but the tests are still ignored, supposedly they should pass now.

Fix examples of Duration::subsec_millis and Duration::subsec_micros

Update examples of `Duration::subsec_millis` and `Duration::subsec_micros`, because they are not for these two methods actually.

Ignore CTFE errors while lowering patterns

Closes rust-lang#43105.

r? @eddyb