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Auto merge of rust-lang#114272 - workingjubilee:rollup-ll9lwon, r=wor…
…kingjubilee Rollup of 4 pull requests Successful merges: - rust-lang#95965 (Stabilize const-weak-new) - rust-lang#109075 (Use `LazyLock` to lazily resolve backtraces) - rust-lang#113741 (Don't install default projection bound for return-position `impl Trait` in trait methods with no body) - rust-lang#114268 (Fix empty_write since rust version attribute) r? `@ghost` `@rustbot` modify labels: rollup
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10 changes: 10 additions & 0 deletions
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tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.rs
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#![feature(return_position_impl_trait_in_trait)] | ||
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struct Wrapper<G: Send>(G); | ||
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trait Foo { | ||
fn bar() -> Wrapper<impl Sized>; | ||
//~^ ERROR `impl Sized` cannot be sent between threads safely | ||
} | ||
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fn main() {} |
16 changes: 16 additions & 0 deletions
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tests/ui/impl-trait/in-trait/check-wf-on-non-defaulted-rpitit.stderr
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error[E0277]: `impl Sized` cannot be sent between threads safely | ||
--> $DIR/check-wf-on-non-defaulted-rpitit.rs:6:17 | ||
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LL | fn bar() -> Wrapper<impl Sized>; | ||
| ^^^^^^^^^^^^^^^^^^^ `impl Sized` cannot be sent between threads safely | ||
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= help: the trait `Send` is not implemented for `impl Sized` | ||
note: required by a bound in `Wrapper` | ||
--> $DIR/check-wf-on-non-defaulted-rpitit.rs:3:19 | ||
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LL | struct Wrapper<G: Send>(G); | ||
| ^^^^ required by this bound in `Wrapper` | ||
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error: aborting due to previous error | ||
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For more information about this error, try `rustc --explain E0277`. |