1 error: used `expect()` on `an Option` value
2 --> $DIR/expect.rs:5:13
4 LL | let _ = opt.expect("");
7 = note: `-D clippy::expect-used` implied by `-D warnings`
8 = help: if this value is an `None`, it will panic
10 error: used `expect()` on `a Result` value
11 --> $DIR/expect.rs:10:13
13 LL | let _ = res.expect("");
16 = help: if this value is an `Err`, it will panic
18 error: aborting due to 2 previous errors