error: unsatisfied lifetime constraints
  --> $DIR/regions-escape-via-trait-or-not.rs:28:14
   |
LL |     with(|o| o) //~ ERROR cannot infer
   |           -- ^ returning this value requires that `'1` must outlive `'2`
   |           ||
   |           |return type of closure is &'2 isize
   |           has type `&'1 isize`

error: aborting due to previous error