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

Fixes rust-lang#47022.

 - Fix panic string in `check_ast_crate`.

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

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

…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

resolve type and region variables in "NLL dropck"

Fixes rust-lang#47022.

r? @pnkfelix

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.

Fix typo.

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.