error[E0623]: lifetime mismatch --> $DIR/ref-mut-self-async.rs:16:9 | LL | async fn ref_self(&mut self, f: &u32) -> &u32 { | ---- ---- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error[E0623]: lifetime mismatch --> $DIR/ref-mut-self-async.rs:24:9 | LL | async fn ref_Self(self: &mut Self, f: &u32) -> &u32 { | ---- ---- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error[E0623]: lifetime mismatch --> $DIR/ref-mut-self-async.rs:30:9 | LL | async fn box_ref_Self(self: Box<&mut Self>, f: &u32) -> &u32 { | ---- ---- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error[E0623]: lifetime mismatch --> $DIR/ref-mut-self-async.rs:36:9 | LL | async fn pin_ref_Self(self: Pin<&mut Self>, f: &u32) -> &u32 { | ---- ---- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error[E0623]: lifetime mismatch --> $DIR/ref-mut-self-async.rs:42:9 | LL | async fn box_box_ref_Self(self: Box>, f: &u32) -> &u32 { | ---- ---- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error[E0623]: lifetime mismatch --> $DIR/ref-mut-self-async.rs:48:9 | LL | async fn box_pin_ref_Self(self: Box>, f: &u32) -> &u32 { | ---- ---- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error: aborting due to 6 previous errors For more information about this error, try `rustc --explain E0623`.