rust/tests/ui/block-result/issue-22645.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

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Plaintext

error[E0277]: the trait bound `{integer}: Scalar` is not satisfied
--> $DIR/issue-22645.rs:15:5
|
LL | b + 3
| ^ the trait `Scalar` is not implemented for `{integer}`, which is required by `Bob: Add<_>`
|
= help: the trait `Scalar` is implemented for `f64`
note: required for `Bob` to implement `Add<{integer}>`
--> $DIR/issue-22645.rs:8:19
|
LL | impl<RHS: Scalar> Add <RHS> for Bob {
| ------ ^^^^^^^^^ ^^^
| |
| unsatisfied trait bound introduced here
error[E0308]: mismatched types
--> $DIR/issue-22645.rs:15:3
|
LL | fn main() {
| - expected `()` because of default return type
LL | let b = Bob + 3.5;
LL | b + 3
| ^^^^^ expected `()`, found `Bob`
error: aborting due to 2 previous errors
Some errors have detailed explanations: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.