error[E0792]: expected generic lifetime parameter, found `'_` | |
--> $DIR/under-binder.rs:6:5 | |
| | |
LL | type Opaque<'a> = impl Sized + 'a; | |
| -- this generic parameter must be used with a generic lifetime parameter | |
... | |
LL | f | |
| ^ | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0792`. |