Rollup of 5 pull requests #125083
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Rollup of 5 pull requests #125083
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Modifying an environment variable would make the function unsafe to call.
…e line In particular, lifetime-generic associated types often have a `where Self: 'a` bound, which we can format on the same line.
Show an example that has bounds.
Suggested-by: Caleb Cartwright <[email protected]>
…-clause-same-line, r=compiler-errors style-guide: Format single associated type `where` clauses on the same line In particular, lifetime-generic associated types often have a `where Self: 'a` bound, which we can format on the same line.
…ert-label, r=apiraino [meta] Clarify prioritization alert Apparently, there used to exist the label <kbd>I-nominated</kbd> judging from this entry: https://github.com/rust-lang/rust/blob/8847bda592d940ae1f34d87d8cacdc09a9f787fa/triagebot.toml#L393 Since it was replaced with individual team labels, I think it makes sense to update the prioritization alert. Of course, it's not super important since the members of WG-prioritization already know that. This is just cleanup. r? apiraino or wg-prioritization
Stabilize `seek_seek_relative`
This PR stabilizes `seek_seek_relative`:
```rust
// std::io::Seek
trait Seek {
fn seek_relative(&mut self, offset: i64) -> Result<()>;
}
```
<br>
Tracking issue: rust-lang#117374.
Implementation PR: rust-lang#116750.
FCPs already completed in the tracking issue.
Closes rust-lang#117374.
r? libs-api
…er-errors
elaborate obligations in coherence
The following test currently does not pass coherence:
```rust
trait Super {}
trait Sub<T>: Super {}
trait Overlap<T> {}
impl<T, U: Sub<T>> Overlap<T> for U {}
impl<T> Overlap<T> for () {}
fn main() {}
```
We check whether `(): Sub<?t>` holds. This stalls with ambiguity as downstream crates may add an impl for `(): Sub<Local>`. However, its super trait bound `(): Super` cannot be implemented downstream, so this one is known not to hold.
By elaborating the bounds in the implicit negative overlap check, this now compiles. This is necessary to prevent breakage from enabling `-Znext-solver=coherence` (rust-lang#121848), see tests/ui/coherence/super-traits/super-trait-knowable-2.rs for more details.
r? ``@compiler-errors``
…lwoerister Don't call `env::set_var` in `rustc_driver::install_ice_hook` Modifying an environment variable would make the function unsafe to call.
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…iaskrgr Rollup of 5 pull requests Successful merges: - rust-lang#119515 (style-guide: Format single associated type `where` clauses on the same line) - rust-lang#119959 ([meta] Clarify prioritization alert) - rust-lang#123817 (Stabilize `seek_seek_relative`) - rust-lang#124532 (elaborate obligations in coherence) - rust-lang#125063 (Don't call `env::set_var` in `rustc_driver::install_ice_hook`) r? `@ghost` `@rustbot` modify labels: rollup
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💔 Test failed - checks-actions |
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Successful merges:
whereclauses on the same line #119515 (style-guide: Format single associated typewhereclauses on the same line)seek_seek_relative#123817 (Stabilizeseek_seek_relative)env::set_varinrustc_driver::install_ice_hook#125063 (Don't callenv::set_varinrustc_driver::install_ice_hook)r? @ghost
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