src/test/ui/borrowck/regions-escape-unboxed-closure.stderr

   1 error: borrowed data cannot be stored outside of its closure
   2   --> $DIR/regions-escape-unboxed-closure.rs:16:32
   3    |
   4 LL |     let mut x: Option<&isize> = None;
   5    |         ----- borrowed data cannot be stored into here...
   6 LL |     with_int(&mut |y| x = Some(y));
   7    |                   ---          ^ cannot be stored outside of its closure
   8    |                   |
   9    |                   ...because it cannot outlive this closure
  10
  11 error: aborting due to previous error
  12