error[E0623]: lifetime mismatch --> $DIR/ref-self.rs:21:9 | LL | fn ref_self(&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-self.rs:27:9 | LL | fn ref_Self(self: &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-self.rs:31:9 | LL | fn box_ref_Self(self: Box<&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-self.rs:35:9 | LL | fn pin_ref_Self(self: Pin<&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-self.rs:39:9 | LL | 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-self.rs:43:9 | LL | 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[E0623]: lifetime mismatch --> $DIR/ref-self.rs:47:9 | LL | fn wrap_ref_Self_Self(self: Wrap<&Self, Self>, f: &u8) -> &u8 { | --- --- | | | this parameter and the return type are declared with different lifetimes... LL | f | ^ ...but data from `f` is returned here error: aborting due to 7 previous errors For more information about this error, try `rustc --explain E0623`.