| error[E0277]: the size for values of type `dyn Future<Output = T> + Unpin` cannot be known at compilation time |
| --> $DIR/awaiting-unsized-param.rs:7:17 |
| | |
| LL | async fn bug<T>(mut f: dyn Future<Output = T> + Unpin) -> T { |
| | ^^^^^ doesn't have a size known at compile-time |
| | |
| = help: the trait `Sized` is not implemented for `dyn Future<Output = T> + Unpin` |
| = note: all local variables must have a statically known size |
| |
| error: aborting due to 1 previous error |
| |
| For more information about this error, try `rustc --explain E0277`. |