error: the following explicit lifetimes could be elided: 'a --> $DIR/issue_4266.rs:4:1 | LL | async fn sink1<'a>(_: &'a str) {} // lint | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: `-D clippy::needless-lifetimes` implied by `-D warnings` error: the following explicit lifetimes could be elided: 'a --> $DIR/issue_4266.rs:8:1 | LL | async fn one_to_one<'a>(s: &'a str) -> &'a str { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ error: methods called `new` usually take no `self` --> $DIR/issue_4266.rs:28:22 | LL | pub async fn new(&mut self) -> Self { | ^^^^^^^^^ | = help: consider choosing a less ambiguous name = note: `-D clippy::wrong-self-convention` implied by `-D warnings` error: aborting due to 3 previous errors