src/test/ui/nll/mir_check_cast_closure.stderr

   1 error: unsatisfied lifetime constraints
   2   --> $DIR/mir_check_cast_closure.rs:17:5
   3    |
   4 LL | fn bar<'a, 'b>() -> fn(&'a u32, &'b u32) -> &'a u32 {
   5    |        --  -- lifetime `'b` defined here
   6    |        |
   7    |        lifetime `'a` defined here
   8 LL |     let g: fn(_, _) -> _ = |_x, y| y;
   9 LL |     g
  10    |     ^ returning this value requires that `'b` must outlive `'a`
  11
  12 error: aborting due to previous error
  13