error[E0623]: lifetime mismatch
  --> $DIR/lt-ref-self-async.rs:13:9
   |
LL |     async fn ref_self(&self, f: &u32) -> &u32 {
   |                       -----              ----
   |                       |                  |
   |                       |                  this `async fn` implicitly returns an `impl Future<Output = &u32>`
   |                       this parameter and the returned future are declared with different lifetimes...
LL |         f
   |         ^ ...but data from `f` is held across an await point here

error[E0623]: lifetime mismatch
  --> $DIR/lt-ref-self-async.rs:19:9
   |
LL |     async fn ref_Self(self: &Self, f: &u32) -> &u32 {
   |                             -----              ----
   |                             |                  |
   |                             |                  this `async fn` implicitly returns an `impl Future<Output = &u32>`
   |                             this parameter and the returned future are declared with different lifetimes...
LL |         f
   |         ^ ...but data from `f` is held across an await point here

error[E0623]: lifetime mismatch
  --> $DIR/lt-ref-self-async.rs:23:9
   |
LL |     async fn box_ref_Self(self: Box<&Self>, f: &u32) -> &u32 {
   |                                     -----               ----
   |                                     |                   |
   |                                     |                   this `async fn` implicitly returns an `impl Future<Output = &u32>`
   |                                     this parameter and the returned future are declared with different lifetimes...
LL |         f
   |         ^ ...but data from `f` is held across an await point here

error[E0623]: lifetime mismatch
  --> $DIR/lt-ref-self-async.rs:27:9
   |
LL |     async fn pin_ref_Self(self: Pin<&Self>, f: &u32) -> &u32 {
   |                                     -----               ----
   |                                     |                   |
   |                                     |                   this `async fn` implicitly returns an `impl Future<Output = &u32>`
   |                                     this parameter and the returned future are declared with different lifetimes...
LL |         f
   |         ^ ...but data from `f` is held across an await point here

error[E0623]: lifetime mismatch
  --> $DIR/lt-ref-self-async.rs:31:9
   |
LL |     async fn box_box_ref_Self(self: Box<Box<&Self>>, f: &u32) -> &u32 {
   |                                             -----                ----
   |                                             |                    |
   |                                             |                    this `async fn` implicitly returns an `impl Future<Output = &u32>`
   |                                             this parameter and the returned future are declared with different lifetimes...
LL |         f
   |         ^ ...but data from `f` is held across an await point here

error[E0623]: lifetime mismatch
  --> $DIR/lt-ref-self-async.rs:35:9
   |
LL |     async fn box_pin_Self(self: Box<Pin<&Self>>, f: &u32) -> &u32 {
   |                                         -----                ----
   |                                         |                    |
   |                                         |                    this `async fn` implicitly returns an `impl Future<Output = &u32>`
   |                                         this parameter and the returned future are declared with different lifetimes...
LL |         f
   |         ^ ...but data from `f` is held across an await point here

error: aborting due to 6 previous errors

For more information about this error, try `rustc --explain E0623`.