rust/tests/ui/async-await/issue-61076.stderr
Esteban Küber 049c32797b On E0277, point at type that doesn't implement bound
When encountering an unmet trait bound, point at local type that doesn't implement the trait:

```
error[E0277]: the trait bound `Bar<T>: Foo` is not satisfied
  --> $DIR/issue-64855.rs:9:19
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   |                   ^^^^^^^^^^^^^^^^^^^ unsatisfied trait bound
   |
help: the trait `Foo` is not implemented for `Bar<T>`
  --> $DIR/issue-64855.rs:9:1
   |
LL | pub struct Bar<T>(<Self as Foo>::Type) where Self: ;
   | ^^^^^^^^^^^^^^^^^
```
2025-08-22 17:55:15 +00:00

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error[E0277]: the `?` operator can only be applied to values that implement `Try`
--> $DIR/issue-61076.rs:42:5
|
LL | foo()?;
| ^^^^^^ the `?` operator cannot be applied to type `impl Future<Output = Result<(), ()>>`
|
= help: the trait `Try` is not implemented for `impl Future<Output = Result<(), ()>>`
help: consider `await`ing on the `Future`
|
LL | foo().await?;
| ++++++
error[E0277]: the `?` operator can only be applied to values that implement `Try`
--> $DIR/issue-61076.rs:62:5
|
LL | t?;
| ^^ the `?` operator cannot be applied to type `T`
|
help: the trait `Try` is not implemented for `T`
--> $DIR/issue-61076.rs:7:1
|
LL | struct T;
| ^^^^^^^^
help: consider `await`ing on the `Future`
|
LL | t.await?;
| ++++++
error[E0609]: no field `0` on type `impl Future<Output = Tuple>`
--> $DIR/issue-61076.rs:69:26
|
LL | let _: i32 = tuple().0;
| ^ field not available in `impl Future`, but it is available in its `Output`
|
help: consider `await`ing on the `Future` to access the field
|
LL | let _: i32 = tuple().await.0;
| ++++++
error[E0609]: no field `a` on type `impl Future<Output = Struct>`
--> $DIR/issue-61076.rs:73:28
|
LL | let _: i32 = struct_().a;
| ^ field not available in `impl Future`, but it is available in its `Output`
|
help: consider `await`ing on the `Future` to access the field
|
LL | let _: i32 = struct_().await.a;
| ++++++
error[E0599]: no method named `method` found for opaque type `impl Future<Output = Struct>` in the current scope
--> $DIR/issue-61076.rs:77:15
|
LL | struct_().method();
| ^^^^^^ method not found in `impl Future<Output = Struct>`
|
help: consider `await`ing on the `Future` and calling the method on its `Output`
|
LL | struct_().await.method();
| ++++++
error[E0308]: mismatched types
--> $DIR/issue-61076.rs:86:9
|
LL | match tuple() {
| ------- this expression has type `impl Future<Output = Tuple>`
LL |
LL | Tuple(_) => {}
| ^^^^^^^^ expected future, found `Tuple`
|
= note: expected opaque type `impl Future<Output = Tuple>`
found struct `Tuple`
help: consider `await`ing on the `Future`
|
LL | match tuple().await {
| ++++++
error: aborting due to 6 previous errors
Some errors have detailed explanations: E0277, E0308, E0599, E0609.
For more information about an error, try `rustc --explain E0277`.