error[E0597]: `a` does not live long enough
  --> $DIR/range-2.rs:17:10
   |
17 |         &a..&b
   |          ^ borrowed value does not live long enough
18 |     };
   |     - `a` dropped here while still borrowed
...
21 | }
   | - borrowed value needs to live until here

error[E0597]: `b` does not live long enough
  --> $DIR/range-2.rs:17:14
   |
17 |         &a..&b
   |              ^ borrowed value does not live long enough
18 |     };
   |     - `b` dropped here while still borrowed
...
21 | }
   | - borrowed value needs to live until here

error: aborting due to 2 previous errors