| warning: unused closure that must be used | |
| --> $DIR/issue-16256.rs:5:5 | |
| | | |
| LL | |c: u8| buf.push(c); | |
| | ^^^^^^^^^^^^^^^^^^^ | |
| | | |
| = note: closures are lazy and do nothing unless called | |
| = note: `#[warn(unused_must_use)]` on by default | |
| warning: 1 warning emitted | |