| warning: method `foo` is never used | |
| --> $DIR/issue-22536-copy-mustnt-zero.rs:8:8 | |
| | | |
| LL | trait Resources { | |
| | --------- method in this trait | |
| LL | type Buffer: Copy; | |
| LL | fn foo(&self) {} | |
| | ^^^ | |
| | | |
| = note: `#[warn(dead_code)]` on by default | |
| warning: 1 warning emitted | |