warning: not reporting region error due to -Znll
  --> $DIR/regions-escape-bound-fn.rs:18:22
   |
LL |     with_int(|y| x = Some(y));
   |                      ^^^^^^^

error: free region `` does not outlive free region `'_#2r`
  --> $DIR/regions-escape-bound-fn.rs:18:27
   |
LL |     with_int(|y| x = Some(y));
   |                           ^

error: aborting due to previous error