1 error[E0507]: cannot move out of dereference of `Ref<'_, TheDarkKnight>`
4 LL | x.borrow().nothing_is_true();
5 | ^^^^^^^^^^ move occurs because value has type `TheDarkKnight`, which does not implement the `Copy` trait
7 error: aborting due to previous error
9 For more information about this error, try `rustc --explain E0507`.