error: lifetime may not live long enough
  --> $DIR/check-resume-ty-lifetimes.rs:15:20
   |
LL | fn mk_static(s: &str) -> &'static str {
   |                 - let's call the lifetime of this reference `'1`
...
LL |             let x: &'static str = yield ();
   |                    ^^^^^^^^^^^^ type annotation requires that `'1` must outlive `'static`

error: aborting due to 1 previous error