1 error[E0477]: the type `&mut ()` does not fulfill the required lifetime
2 --> $DIR/issue-90014.rs:13:20
4 LL | type Fut<'a> where Self: 'a;
5 | ------------ definition of `Fut` from trait
7 LL | type Fut<'a> = impl Future<Output = ()>;
8 | ^^^^^^^^^^^^^^^^^^^^^^^^
10 note: type must outlive the lifetime `'a` as defined here
11 --> $DIR/issue-90014.rs:13:14
13 LL | type Fut<'a> = impl Future<Output = ()>;
15 help: copy the `where` clause predicates from the trait
17 LL | type Fut<'a> = impl Future<Output = ()> where Self: 'a;
20 error: aborting due to previous error
22 For more information about this error, try `rustc --explain E0477`.