rust/tests/ui/closures/closure-move-sync.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

26 lines
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error[E0277]: `std::sync::mpsc::Receiver<()>` cannot be shared between threads safely
--> $DIR/closure-move-sync.rs:6:27
|
LL | let t = thread::spawn(|| {
| _____________-------------_^
| | |
| | required by a bound introduced by this call
LL | | recv.recv().unwrap();
LL | |
LL | | });
| |_____^ `std::sync::mpsc::Receiver<()>` cannot be shared between threads safely
|
= help: the trait `Sync` is not implemented for `std::sync::mpsc::Receiver<()>`, which is required by `{closure@$DIR/closure-move-sync.rs:6:27: 6:29}: Send`
= note: required for `&std::sync::mpsc::Receiver<()>` to implement `Send`
note: required because it's used within this closure
--> $DIR/closure-move-sync.rs:6:27
|
LL | let t = thread::spawn(|| {
| ^^
note: required by a bound in `spawn`
--> $SRC_DIR/std/src/thread/mod.rs:LL:COL
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0277`.