error: this lifetime isn't used in the function definition --> $DIR/extra_unused_lifetimes.rs:8:14 | LL | fn unused_lt<'a>(x: u8) {} | ^^ | = note: `-D clippy::extra-unused-lifetimes` implied by `-D warnings` error: this lifetime isn't used in the function definition --> $DIR/extra_unused_lifetimes.rs:10:25 | LL | fn unused_lt_transitive<'a, 'b: 'a>(x: &'b u8) { | ^^ error: this lifetime isn't used in the function definition --> $DIR/extra_unused_lifetimes.rs:35:10 | LL | fn x<'a>(&self) {} | ^^ error: this lifetime isn't used in the function definition --> $DIR/extra_unused_lifetimes.rs:61:22 | LL | fn unused_lt<'a>(x: u8) {} | ^^ error: aborting due to 4 previous errors