error[E0597]: `hs` does not live long enough
  --> $DIR/boxed_local.rs:11:14
   |
9  |   let _boxed = {
   |       ------ borrow later stored here
10 |     let mut hs = v8::HandleScope::new(root_hs);
11 |     let hs = hs.enter();
   |              ^^ borrowed value does not live long enough
12 |     Box::new(v8::Integer::new(hs, 123))
13 |   };
   |   - `hs` dropped here while still borrowed