error: using `Option.and_then(Some)`, which is a no-op --> $DIR/bind_instead_of_map.rs:8:13 | LL | let _ = x.and_then(Some); | ^^^^^^^^^^^^^^^^ help: use the expression directly: `x` | note: the lint level is defined here --> $DIR/bind_instead_of_map.rs:2:9 | LL | #![deny(clippy::bind_instead_of_map)] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: using `Option.and_then(|x| Some(y))`, which is more succinctly expressed as `map(|x| y)` --> $DIR/bind_instead_of_map.rs:9:13 | LL | let _ = x.and_then(|o| Some(o + 1)); | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try this: `x.map(|o| o + 1)` error: using `Result.and_then(Ok)`, which is a no-op --> $DIR/bind_instead_of_map.rs:15:13 | LL | let _ = x.and_then(Ok); | ^^^^^^^^^^^^^^ help: use the expression directly: `x` error: aborting due to 3 previous errors