error[E0597]: borrowed value does not live long enough
  --> $DIR/capture-ref-in-struct.rs:36:6
   |
28 |         let y = 22;
   |             - temporary value created here
...
36 |     }
   |      ^ temporary value dropped here while still borrowed
   |
   = note: consider using a `let` binding to increase its lifetime

error: aborting due to previous error