| warning: unused coroutine that must be used | |
| --> $DIR/issue-48623-coroutine.rs:15:5 | |
| | | |
| LL | move || { d; yield; &mut *r }; | |
| | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
| | | |
| = note: coroutines are lazy and do nothing unless resumed | |
| = note: `#[warn(unused_must_use)]` on by default | |
| warning: 1 warning emitted | |