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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.
27 lines
1.1 KiB
Plaintext
27 lines
1.1 KiB
Plaintext
error: future cannot be sent between threads safely
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--> $DIR/issue-67252-unnamed-future.rs:18:5
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LL | / spawn(async {
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LL | | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send`
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LL | | AFuture.await;
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LL | | let _a = a;
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LL | | });
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| |______^ future created by async block is not `Send`
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= help: within `{async block@$DIR/issue-67252-unnamed-future.rs:18:11: 22:6}`, the trait `Send` is not implemented for `*mut ()`, which is required by `{async block@$DIR/issue-67252-unnamed-future.rs:18:11: 22:6}: Send`
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note: future is not `Send` as this value is used across an await
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--> $DIR/issue-67252-unnamed-future.rs:20:17
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LL | let a = std::ptr::null_mut::<()>(); // `*mut ()` is not `Send`
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| - has type `*mut ()` which is not `Send`
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LL | AFuture.await;
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| ^^^^^ await occurs here, with `a` maybe used later
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note: required by a bound in `spawn`
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--> $DIR/issue-67252-unnamed-future.rs:6:13
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LL | fn spawn<T: Send>(_: T) {}
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| ^^^^ required by this bound in `spawn`
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error: aborting due to 1 previous error
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