Drop petgraph dependency from bootstrap
It was essentially unused, likely leftover from a previous refactoring iteration. This should hopefully help reduce bootstrap build times a little, dropping petgraph, fixedbitset, and ordermap from the dependency set.
r? @alexcrichton
Remove rustc-dev from the default nightly components
It was already filtered from other branches, but we only kept it in
nightly's default to ease the transition. Now that the separation of
rust-std/rustc-dev has reached the 1.40 release, it seems like a good
time for that transition to end.
Closes#67425.
r? @Mark-Simulacrum
Make GATs less ICE-prone.
After this PR simple lifetime-generic associated types can now be used in a compiling program. There are two big limitations:
* #30472 has not been addressed in any way (see src/test/ui/generic-associated-types/iterable.rs)
* Using type- and const-generic associated types errors because bound types and constants aren't handled by trait solving.
* The errors are technically non-fatal, but they happen in a [part of the compiler](4abb0ad273/src/librustc_typeck/lib.rs (L298)) that fairly aggressively stops compiling on errors.
closes#47206closes#49362closes#62521closes#63300closes#64755closes#67089
Update cargo, books
Update nomicon, cargo, reference, book, rust-by-example, embedded-book
## nomicon
2 commits in 041c46e692a2592853aeca132c8dfe8eb5a79a9e..8be35b201f9cf0a4c3fcc96c83ac21671dcf3112
2019-11-20 16:46:45 +0100 to 2019-12-01 13:02:12 -0500
- Update unwinding.md
- ci: remove needless rust-docs component
## cargo
15 commits in 626f0f40efd32e6b3dbade50cd53fdfaa08446ba..5a139f7e6d67fd8a416a3f19d8e01581d24c0333
2019-12-03 16:53:04 +0000 to 2019-12-10 20:17:50 +0000
- Bump cargo-platform version. (rust-lang/cargo#7693)
- Add a test for `cargo locate-project` (rust-lang/cargo#7690)
- Emit error on [target.'cfg(debug_assertions)'.dependencies] and similar (rust-lang/cargo#7660)
- Update the layout of `Cargo Commands` in doc (rust-lang/cargo#7687)
- Features and dependencies can't have the same name (rust-lang/cargo#7682)
- Fix some typos in doc (rust-lang/cargo#7672)
- Add test for `NAME` environment variable when `cargo new` (rust-lang/cargo#7667)
- Add test for `GIT_COMMITTER_EMAIL` when `cargo new` (rust-lang/cargo#7666)
- document support for Bitbucket Pipelines badges (rust-lang/cargo#7663)
- Add cargo-vendor to the list of cargo commands in doc (rust-lang/cargo#7659)
- Fix typo in section 'Caching the Cargo home in CI' (rust-lang/cargo#7661)
- Docs: Add an appendix on git authentication. (rust-lang/cargo#7658)
- Remove --offline empty index error. (rust-lang/cargo#7655)
- Change the link destination of cargo book contribution (rust-lang/cargo#7657)
- Add a --offline hint. (rust-lang/cargo#7654)
## reference
2 commits in 9e843aeb4df083522c7277179bbaa25d0507731c..787e8d84034a4a0ae17084bbae25474152144b9a
2019-11-24 17:44:04 +0100 to 2019-12-10 10:01:29 -0800
- Update for visibility syntax changes. (rust-lang-nursery/reference#722)
- document `bind_by_move_pattern_guards` (rust-lang-nursery/reference#720)
## book
2 commits in 81ebaa2a3f88d4d106516c489682e64cacba4f60..ef8bb568035ded8ddfa30a9309026638cc3c8136
2019-11-15 08:30:04 -0800 to 2019-11-28 11:00:04 -0600
- Remove optional commas from match arms in ch18-03 (rust-lang/book#2176)
- Remove call_box() from ch20-03 (rust-lang/book#2177)
## rust-by-example
1 commits in 4835e025826729827a94fdeb7cb85fed288d08bb..b7ac1bc76b7d02a43c83b3a931d226f708aa1ff4
2019-11-14 09:20:43 -0300 to 2019-12-02 11:38:43 -0300
- Make TryFrom & TryInto example editable (rust-lang/rust-by-example#1297)
## embedded-book
1 commits in 5ca585c4a7552efb546e7681c3de0712f4ae4fdc..c26234930282210849256e4ecab925f0f2daf3be
2019-08-27 13:39:14 +0000 to 2019-12-07 17:25:11 +0000
- Fix `impl Gpio` -> `impl GpioConfig` (rust-embedded/book#216)
Test slice patterns more
Adds tests for const evaluation and some more borrow checking tests.
Fixes some bugs in const eval for subslice patterns.
closes#66934
r? @oli-obk
cc @Centril
Make ptr::slice_from_raw_parts a const fn available under a feature flag
A first step in the direction of https://github.com/rust-lang/rust/issues/67456 .
This makes `ptr::slice_from_raw_parts` and `ptr::slice_from_raw_parts_mut` available as a const fn under a feature flag.
Enable opting out of specific default LLVM arguments.
`rustc` by default adds a few arguments to LLVM (like `-mergefunc-use-aliases` for example). With this PR `rustc` will only emit these arguments if the same argument has not already been specified by the user via `-Cllvm-args`. This enables opting out of these defaults.
The PR also removes a PGO specific `-Z` flag the effect of which can also be easily achieved by `-Cllvm-args`.
Fixes https://github.com/rust-lang/rust/issues/64310.
Fix too restrictive checks on Drop impls
Fixes#34426. Fixes#58311.
This PR completes and extends #59497 (which has been inactive for a while now).
The problem generating both issues was that when checking that the `Predicate`s of the `Drop` impl are exactly the same as the ones of the struct definition, the check was essentially performed by a simple `==` operator, which was not handling correctly HRTBs and involved `Fn` types.
The implemented solution relies on the `relate` machinery to more correctly equate `Predicate`s, and on `anonymize_late_bound_regions` to handle HRTB in a more general way. As the `Relate` trait currently is implemented only for `TraitPredicate` and `ProjectionPredicate` (and as they were the ones generating problems), `relate` is used only for them while for other `Predicate`s the equality check is kept. I'm currently considering whether it would make sense to implement the `Relate` trait also for all other `Predicate`s to render the proposed solution more general.
