error: used `unwrap()` on `an Option` value --> $DIR/unwrap.rs:5:13 | LL | let _ = opt.unwrap(); | ^^^^^^^^^^^^ | = note: `-D clippy::unwrap-used` implied by `-D warnings` = help: if you don't want to handle the `None` case gracefully, consider using `expect()` to provide a better panic message error: used `unwrap()` on `a Result` value --> $DIR/unwrap.rs:10:13 | LL | let _ = res.unwrap(); | ^^^^^^^^^^^^ | = help: if you don't want to handle the `Err` case gracefully, consider using `expect()` to provide a better panic message error: aborting due to 2 previous errors