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.
47 lines
1.8 KiB
Plaintext
47 lines
1.8 KiB
Plaintext
error[E0277]: `*const Bar` cannot be shared between threads safely
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--> $DIR/recursive-requirements.rs:16:12
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LL | let _: AssertSync<Foo> = unimplemented!();
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| ^^^^^^^^^^^^^^^ `*const Bar` cannot be shared between threads safely
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= help: within `Foo`, the trait `Sync` is not implemented for `*const Bar`, which is required by `Foo: Sync`
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note: required because it appears within the type `Foo`
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--> $DIR/recursive-requirements.rs:5:12
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LL | pub struct Foo {
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| ^^^
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note: required by a bound in `AssertSync`
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--> $DIR/recursive-requirements.rs:3:22
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LL | struct AssertSync<T: Sync>(PhantomData<T>);
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| ^^^^ required by this bound in `AssertSync`
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error[E0277]: `*const Foo` cannot be shared between threads safely
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--> $DIR/recursive-requirements.rs:16:12
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LL | let _: AssertSync<Foo> = unimplemented!();
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| ^^^^^^^^^^^^^^^ `*const Foo` cannot be shared between threads safely
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= help: within `Foo`, the trait `Sync` is not implemented for `*const Foo`, which is required by `Foo: Sync`
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note: required because it appears within the type `Bar`
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--> $DIR/recursive-requirements.rs:10:12
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LL | pub struct Bar {
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| ^^^
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note: required because it appears within the type `PhantomData<Bar>`
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--> $SRC_DIR/core/src/marker.rs:LL:COL
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note: required because it appears within the type `Foo`
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--> $DIR/recursive-requirements.rs:5:12
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LL | pub struct Foo {
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| ^^^
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note: required by a bound in `AssertSync`
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--> $DIR/recursive-requirements.rs:3:22
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LL | struct AssertSync<T: Sync>(PhantomData<T>);
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| ^^^^ required by this bound in `AssertSync`
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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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