1 error: unused return value of `foo` that must be used
2 --> $DIR/must_use-unit.rs:13:5
7 note: the lint level is defined here
8 --> $DIR/must_use-unit.rs:2:9
10 LL | #![deny(unused_must_use)]
13 error: unused return value of `bar` that must be used
14 --> $DIR/must_use-unit.rs:15:5
19 error: aborting due to 2 previous errors