error[E0495]: cannot infer an appropriate lifetime due to conflicting requirements
  --> $DIR/regions-ret-borrowed.rs:13:14
   |
LL |     with(|o| o)
   |              ^
   |
note: first, the lifetime cannot outlive the anonymous lifetime #2 defined on the body at 13:10...
  --> $DIR/regions-ret-borrowed.rs:13:10
   |
LL |     with(|o| o)
   |          ^^^^^
   = note: ...so that the expression is assignable:
           expected &isize
              found &isize
note: but, the lifetime must be valid for the lifetime 'a as defined on the function body at 12:14...
  --> $DIR/regions-ret-borrowed.rs:12:14
   |
LL | fn return_it<'a>() -> &'a isize {
   |              ^^
note: ...so that reference does not outlive borrowed content
  --> $DIR/regions-ret-borrowed.rs:13:5
   |
LL |     with(|o| o)
   |     ^^^^^^^^^^^

error: aborting due to previous error