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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.
60 lines
2.0 KiB
Plaintext
60 lines
2.0 KiB
Plaintext
error[E0277]: `Rc<Cell<i32>>` cannot be sent between threads safely
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--> $DIR/auto-trait-leak2.rs:20:10
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LL | fn before() -> impl Fn(i32) {
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| ------------ within this `impl Fn(i32)`
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...
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LL | send(before());
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| ---- ^^^^^^^^ `Rc<Cell<i32>>` cannot be sent between threads safely
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| required by a bound introduced by this call
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= help: within `impl Fn(i32)`, the trait `Send` is not implemented for `Rc<Cell<i32>>`, which is required by `impl Fn(i32): Send`
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note: required because it's used within this closure
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--> $DIR/auto-trait-leak2.rs:10:5
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LL | move |x| p.set(x)
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| ^^^^^^^^
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note: required because it appears within the type `impl Fn(i32)`
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--> $DIR/auto-trait-leak2.rs:5:16
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LL | fn before() -> impl Fn(i32) {
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| ^^^^^^^^^^^^
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note: required by a bound in `send`
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--> $DIR/auto-trait-leak2.rs:13:12
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LL | fn send<T: Send>(_: T) {}
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| ^^^^ required by this bound in `send`
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error[E0277]: `Rc<Cell<i32>>` cannot be sent between threads safely
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--> $DIR/auto-trait-leak2.rs:25:10
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LL | send(after());
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| ---- ^^^^^^^ `Rc<Cell<i32>>` cannot be sent between threads safely
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| |
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| required by a bound introduced by this call
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...
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LL | fn after() -> impl Fn(i32) {
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| ------------ within this `impl Fn(i32)`
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= help: within `impl Fn(i32)`, the trait `Send` is not implemented for `Rc<Cell<i32>>`, which is required by `impl Fn(i32): Send`
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note: required because it's used within this closure
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--> $DIR/auto-trait-leak2.rs:38:5
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LL | move |x| p.set(x)
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| ^^^^^^^^
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note: required because it appears within the type `impl Fn(i32)`
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--> $DIR/auto-trait-leak2.rs:33:15
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LL | fn after() -> impl Fn(i32) {
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| ^^^^^^^^^^^^
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note: required by a bound in `send`
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--> $DIR/auto-trait-leak2.rs:13:12
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LL | fn send<T: Send>(_: T) {}
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| ^^^^ required by this bound in `send`
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error: aborting due to 2 previous errors
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For more information about this error, try `rustc --explain E0277`.
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