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6efddac288
Expand the primary span of E0277 when the immediate unmet bound is not what the user wrote:
```
error[E0277]: the trait bound `i32: Bar` is not satisfied
--> f100.rs:6:6
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6 | <i32 as Foo>::foo();
| ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
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help: this trait has no implementations, consider adding one
--> f100.rs:2:1
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2 | trait Bar {}
| ^^^^^^^^^
note: required for `i32` to implement `Foo`
--> f100.rs:3:14
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3 | impl<T: Bar> Foo for T {}
| --- ^^^ ^
| |
| unsatisfied trait bound introduced here
```
Fix #40120.
23 lines
968 B
Plaintext
23 lines
968 B
Plaintext
error: future cannot be sent between threads safely
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--> $DIR/issue-71137.rs:22:14
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LL | fake_spawn(wrong_mutex());
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| ^^^^^^^^^^^^^ future returned by `wrong_mutex` is not `Send`
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= help: within `impl Future<Output = ()>`, the trait `Send` is not implemented for `MutexGuard<'_, i32>`, which is required by `impl Future<Output = ()>: Send`
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note: future is not `Send` as this value is used across an await
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--> $DIR/issue-71137.rs:14:26
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LL | let mut guard = m.lock().unwrap();
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| --------- has type `MutexGuard<'_, i32>` which is not `Send`
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LL | (async { "right"; }).await;
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| ^^^^^ await occurs here, with `mut guard` maybe used later
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note: required by a bound in `fake_spawn`
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--> $DIR/issue-71137.rs:8:27
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LL | fn fake_spawn<F: Future + Send + 'static>(f: F) { }
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| ^^^^ required by this bound in `fake_spawn`
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error: aborting due to 1 previous error
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