| error[E0271]: type mismatch resolving `() == i32` | |
| --> $DIR/async.rs:12:17 | |
| | | |
| LL | needs_async(async {}); | |
| | ----------- ^^^^^^^^ types differ | |
| | | | |
| | required by a bound introduced by this call | |
| | | |
| note: required by a bound in `needs_async` | |
| --> $DIR/async.rs:8:31 | |
| | | |
| LL | fn needs_async(_: impl Future<Output = i32>) {} | |
| | ^^^^^^^^^^^^ required by this bound in `needs_async` | |
| error: aborting due to 1 previous error | |
| For more information about this error, try `rustc --explain E0271`. |