| error[E0507]: cannot move out of dereference of `std::cell::Ref<'_, TheDarkKnight>` | |
| --> $DIR/E0507.rs:12:5 | |
| | | |
| LL | x.borrow().nothing_is_true(); | |
| | ^^^^^^^^^^ move occurs because value has type `TheDarkKnight`, which does not implement the `Copy` trait | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0507`. |