error: manual implementation of `Option::map` --> $DIR/manual_map_option_2.rs:8:13 | LL | let _ = match Some(0) { | _____________^ LL | | Some(x) => Some({ LL | | let y = (String::new(), String::new()); LL | | (x, y.0) LL | | }), LL | | None => None, LL | | }; | |_____^ | = note: `-D clippy::manual-map` implied by `-D warnings` help: try this | LL ~ let _ = Some(0).map(|x| { LL + let y = (String::new(), String::new()); LL + (x, y.0) LL ~ }); | error: manual implementation of `Option::map` --> $DIR/manual_map_option_2.rs:50:13 | LL | let _ = match &s { | _____________^ LL | | Some(x) => Some({ LL | | if let Some(ref s) = s { (x.clone(), s) } else { panic!() } LL | | }), LL | | None => None, LL | | }; | |_____^ | help: try this | LL ~ let _ = s.as_ref().map(|x| { LL + if let Some(ref s) = s { (x.clone(), s) } else { panic!() } LL ~ }); | error: aborting due to 2 previous errors