| error: lifetime may not live long enough | |
| --> $DIR/wf-check-hidden-type.rs:14:5 | |
| | | |
| LL | fn boom<'a, 'b>() -> impl Extend<'a, 'b> { | |
| | -- -- lifetime `'b` defined here | |
| | | | |
| | lifetime `'a` defined here | |
| LL | None::<&'_ &'_ ()> | |
| | ^^^^^^^^^^^^^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a` | |
| | | |
| = help: consider adding the following bound: `'a: 'b` | |
| error: aborting due to 1 previous error | |