error: lifetime parameter `'a` never used --> $DIR/zero-uses-in-fn.rs:8:14 | LL | fn september<'a>() {} | -^^- help: elide the unused lifetime | note: lint level defined here --> $DIR/zero-uses-in-fn.rs:5:9 | LL | #![deny(unused_lifetimes)] | ^^^^^^^^^^^^^^^^ error: lifetime parameter `'a` never used --> $DIR/zero-uses-in-fn.rs:12:12 | LL | fn october<'a, 'b, T>(s: &'b T) -> &'b T { | ^^-- | | | help: elide the unused lifetime error: lifetime parameter `'b` never used --> $DIR/zero-uses-in-fn.rs:18:17 | LL | fn november<'a, 'b>(s: &'a str) -> (&'a str) { | --^^ | | | help: elide the unused lifetime error: aborting due to 3 previous errors