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.
24 lines
1.2 KiB
Plaintext
24 lines
1.2 KiB
Plaintext
error[E0277]: the type `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
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--> $DIR/interior-mutability.rs:5:18
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LL | catch_unwind(|| { x.set(23); });
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| ------------ ^^^^^^^^^^^^^^^^^ `UnsafeCell<i32>` may contain interior mutability and a reference may not be safely transferrable across a catch_unwind boundary
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| required by a bound introduced by this call
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= help: within `Cell<i32>`, the trait `RefUnwindSafe` is not implemented for `UnsafeCell<i32>`, which is required by `{closure@$DIR/interior-mutability.rs:5:18: 5:20}: UnwindSafe`
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note: required because it appears within the type `Cell<i32>`
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--> $SRC_DIR/core/src/cell.rs:LL:COL
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= note: required for `&Cell<i32>` to implement `UnwindSafe`
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note: required because it's used within this closure
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--> $DIR/interior-mutability.rs:5:18
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LL | catch_unwind(|| { x.set(23); });
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| ^^
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note: required by a bound in `catch_unwind`
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--> $SRC_DIR/std/src/panic.rs:LL:COL
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error: aborting due to 1 previous error
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For more information about this error, try `rustc --explain E0277`.
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