ouroboros_examples 0.15.5

error[E0505]: cannot move out of `instance` because it is borrowed
  --> src/fail_tests/use_moved_ref_after_free.rs:17:10
   |
16 |     instance.with_data_ref(|dref| stored_ref = Some(*dref));
   |     ------------------------------------------------------- borrow of `instance` occurs here
17 |     drop(instance);
   |          ^^^^^^^^ move out of `instance` occurs here
18 |     println!("{:?}", stored_ref);
   |                      ---------- borrow later used here