error[E0597]: `y` does not live long enough
  --> $DIR/capture-ref-in-struct.rs:33:16
   |
LL |             y: &y,
   |                ^^ borrowed value does not live long enough
...
LL |     }
   |     - borrowed value only lives until here
LL | 
LL |     deref(p);
   |           - borrow later used here
   |
   = note: borrowed value must be valid for lifetime '_#5r...

error: aborting due to previous error

If you want more information on this error, try using "rustc --explain E0597"