error[E0499]: cannot borrow `scope1` as mutable more than once at a time
  --> $DIR/handle_scope_lifetime_3.rs:10:22
   |
9  |     let mut _scope2 = v8::EscapableHandleScope::new(&mut scope1);
   |                                                     ----------- first mutable borrow occurs here
10 |     v8::Integer::new(&mut scope1, 123)
   |                      ^^^^^^^^^^^ second mutable borrow occurs here
11 |   };
   |   - first borrow might be used here, when `_scope2` is dropped and runs the `Drop` code for type `EscapableHandleScope`