rust/tests/ui/suggestions/issue-96223.stderr
Esteban Küber 6efddac288 Provide more context on derived obligation error primary label
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
  |
6 |     <i32 as Foo>::foo();
  |      ^^^ the trait `Bar` is not implemented for `i32`, which is required by `i32: Foo`
  |
help: this trait has no implementations, consider adding one
 --> f100.rs:2:1
  |
2 | trait Bar {}
  | ^^^^^^^^^
note: required for `i32` to implement `Foo`
 --> f100.rs:3:14
  |
3 | impl<T: Bar> Foo for T {}
  |         ---  ^^^     ^
  |         |
  |         unsatisfied trait bound introduced here
```

Fix #40120.
2024-01-30 21:28:18 +00:00

32 lines
1.3 KiB
Plaintext

error[E0277]: the trait bound `for<'de> EmptyBis<'de>: Foo<'_>` is not satisfied
--> $DIR/issue-96223.rs:49:17
|
LL | icey_bounds(&p);
| ----------- ^^ the trait `for<'de> Foo<'_>` is not implemented for `EmptyBis<'de>`, which is required by `Empty: Dummy<EmptyMarker>`
| |
| required by a bound introduced by this call
|
= help: the trait `Foo<'de>` is implemented for `Baz<T>`
note: required for `Baz<EmptyBis<'de>>` to implement `for<'de> Foo<'de>`
--> $DIR/issue-96223.rs:16:14
|
LL | impl<'de, T> Foo<'de> for Baz<T> where T: Foo<'de> {}
| ^^^^^^^^ ^^^^^^ -------- unsatisfied trait bound introduced here
note: required for `Empty` to implement `Dummy<EmptyMarker>`
--> $DIR/issue-96223.rs:20:9
|
LL | impl<M> Dummy<M> for Empty
| ^^^^^^^^ ^^^^^
...
LL | for<'de> Baz<<M::Bar as Bar<'de>>::Inner>: Foo<'de>,
| -------- unsatisfied trait bound introduced here
note: required by a bound in `icey_bounds`
--> $DIR/issue-96223.rs:45:19
|
LL | fn icey_bounds<D: Dummy<EmptyMarker>>(p: &D) {}
| ^^^^^^^^^^^^^^^^^^ required by this bound in `icey_bounds`
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.