error: equality checks against true are unnecessary --> $DIR/bool_comparison.rs:7:8 | 7 | if x == true { "yes" } else { "no" }; | ^^^^^^^^^ | note: lint level defined here --> $DIR/bool_comparison.rs:4:8 | 4 | #[deny(bool_comparison)] | ^^^^^^^^^^^^^^^ help: try simplifying it as shown: | if x { "yes" } else { "no" }; error: equality checks against false can be replaced by a negation --> $DIR/bool_comparison.rs:11:8 | 11 | if x == false { "yes" } else { "no" }; | ^^^^^^^^^^ | help: try simplifying it as shown: | if !x { "yes" } else { "no" }; error: equality checks against true are unnecessary --> $DIR/bool_comparison.rs:15:8 | 15 | if true == x { "yes" } else { "no" }; | ^^^^^^^^^ | help: try simplifying it as shown: | if x { "yes" } else { "no" }; error: equality checks against false can be replaced by a negation --> $DIR/bool_comparison.rs:19:8 | 19 | if false == x { "yes" } else { "no" }; | ^^^^^^^^^^ | help: try simplifying it as shown: | if !x { "yes" } else { "no" }; error: aborting due to 4 previous errors