error[E0597]: `y` does not live long enough
  --> $DIR/regions-nested-fns-2.rs:16:9
   |
LL | /         |z| {
LL | |             //~^ ERROR E0373
LL | |             if false { &y } else { z }
LL | |         });
   | |_________^ borrowed value does not live long enough
LL |   }
   |   - `y` dropped here while still borrowed
   |
   = note: borrowed value must be valid for the static lifetime...

error: aborting due to previous error

For more information about this error, try `rustc --explain E0597`.