This makes the error style consistent with the convention in error messages.

…-dereferencing" error

`TryFrom<&[T]> for &[T; $N]` (note *reference* to an array) already exists,
but not needing to dereference makes type inference easier
for example when using `u32::from_be_bytes`.

Also add doc examples doing just that.

Within this `Iterator` implementation, a function `unsafe_get` is
defined which unsafely allows _unchecked_ indexing of any element in a
slice. This should be marked as _unsafe_, but it is not.

To address this issue, I removed that inner function.

…oerister

Use sort_by_cached_key when the key function is not trivial/free

I'm not 100% sure about `def_path_hash` (everything it does is inlined) but it seems like a good idea at least for the rest, as they are cloning.

…ikomatsakis

Enclose type in backticks for "non-exhaustive patterns" error

This makes the error style consistent with the convention in error messages.

…tsakis

Update an outdated comment in mir building

r? @eddyb

Fix ICE with feature self_struct_ctor

Fix rust-lang#56202.

…ithoutboats

Add TryFrom<&[T]> for [T; $N] where T: Copy

`TryFrom<&[T]> for &[T; $N]` (note *reference* to an array) already exists, but not needing to dereference makes type inference easier for example when using `u32::from_be_bytes`.

Also add doc examples doing just that.

…r=wesleywiser

Make JSON output from -Zprofile-json valid

r? @wesleywiser

cc rust-lang/rustc-perf#299

Update cargo

14 commits in b3d0b2e545b61d4cd08096911724b7d49d213f73..1ff5975b96b3d395bb962394596998dfb485f793
2018-11-15 19:13:04 +0000 to 2018-11-25 14:59:12 +0000
- Intern SourceId (rust-lang/cargo#6342)
- Tweak Layout to allow for non json file targets with internal "." (rust-lang/cargo#6255)
- Correct Target Directory command-line option (rust-lang/cargo#6343)
- Persistent data structures by im-rs (rust-lang/cargo#6336)
- Move command prelude into main library (rust-lang/cargo#6335)
- Distinguish custom build invocations (rust-lang/cargo#6331)
- Allow crate_type=bin examples to run (rust-lang/cargo#6330)
- Make verify-project honour unstable features (rust-lang/cargo#6326)
- Make autodiscovery disable inferred targets (rust-lang/cargo#6329)
- Add `c` alias for `check` (rust-lang/cargo#6218)
- Allow user aliases to override built-in aliases (rust-lang/cargo#6259)
- Fix renaming directory project using build scripts with cross-compiling. (rust-lang/cargo#6328)
- Fix add_plugin_deps-related tests. (rust-lang/cargo#6327)
- Add a glossary. (rust-lang/cargo#6321)

…cramertj

Remove unsafe `unsafe` inner function.

Within this `Iterator` implementation, a function `unsafe_get` is
defined which unsafely allows _unchecked_ indexing of any element in a
slice. This should be marked as _unsafe_, but it is not.

To address this issue, I removed that inner function.

…aelwoerister

Update outdated code comments in StringReader

For the detection of newlines in the lexer, this is now done in `analyze_source_file.rs`.