error: used `unwrap()` on `an Option` value
  --> $DIR/unwrap_expect_used.rs:23:5
   |
LL |     Some(3).unwrap();
   |     ^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::unwrap-used` implied by `-D warnings`
   = help: if this value is `None`, it will panic

error: used `expect()` on `an Option` value
  --> $DIR/unwrap_expect_used.rs:24:5
   |
LL |     Some(3).expect("Hello world!");
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::expect-used` implied by `-D warnings`
   = help: if this value is `None`, it will panic

error: used `unwrap()` on `a Result` value
  --> $DIR/unwrap_expect_used.rs:31:5
   |
LL |     a.unwrap();
   |     ^^^^^^^^^^
   |
   = help: if this value is an `Err`, it will panic

error: used `expect()` on `a Result` value
  --> $DIR/unwrap_expect_used.rs:32:5
   |
LL |     a.expect("Hello world!");
   |     ^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: if this value is an `Err`, it will panic

error: used `unwrap_err()` on `a Result` value
  --> $DIR/unwrap_expect_used.rs:33:5
   |
LL |     a.unwrap_err();
   |     ^^^^^^^^^^^^^^
   |
   = help: if this value is an `Ok`, it will panic

error: used `expect_err()` on `a Result` value
  --> $DIR/unwrap_expect_used.rs:34:5
   |
LL |     a.expect_err("Hello error!");
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: if this value is an `Ok`, it will panic

error: aborting due to 6 previous errors