error[E0597]: `a` does not live long enough
  --> $DIR/borrowing.rs:18:18
   |
LL |         unsafe { (|| yield &a).resume() }
   |                  ^^^^^^^^^^^^^ borrowed value does not live long enough
LL |         //~^ ERROR: `a` does not live long enough
LL |     };
   |     - `a` dropped here while still borrowed

error[E0597]: `a` does not live long enough
  --> $DIR/borrowing.rs:24:9
   |
LL | /         || {
LL | |             yield &a
LL | |             //~^ ERROR: `a` does not live long enough
LL | |         }
   | |_________^ borrowed value does not live long enough
LL |       };
   |       - `a` dropped here while still borrowed
LL |   }
   |   - borrow later used here, when `_b` is dropped

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0597`.