error[E0623]: lifetime mismatch
  --> $DIR/arbitrary_self_types_pin_lifetime_mismatch-async.rs:8:52
   |
LL |     async fn a(self: Pin<&Foo>, f: &Foo) -> &Foo { f }
   |                          ----               ----   ^ ...but data from `f` is returned here
   |                          |
   |                          this parameter and the return type are declared with different lifetimes...

error[E0623]: lifetime mismatch
  --> $DIR/arbitrary_self_types_pin_lifetime_mismatch-async.rs:11:82
   |
LL |     async fn c(self: Pin<&Self>, f: &Foo, g: &Foo) -> (Pin<&Foo>, &Foo) { (self, f) }
   |                          -----                        -----------------          ^ ...but data from `f` is returned here
   |                          |
   |                          this parameter and the return type are declared with different lifetimes...

error[E0623]: lifetime mismatch
  --> $DIR/arbitrary_self_types_pin_lifetime_mismatch-async.rs:17:64
   |
LL |     async fn bar<'a>(self: Alias<&Self>, arg: &'a ()) -> &() { arg }
   |                                  -----                   ---   ^^^ ...but data from `arg` is returned here
   |                                  |
   |                                  this parameter and the return type are declared with different lifetimes...

error: aborting due to 3 previous errors

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