error[E0623]: lifetime mismatch
  --> $DIR/ref-struct-async.rs:13:9
   |
LL |     async fn ref_Struct(self: &Struct, 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-struct-async.rs:17:9
   |
LL |     async fn box_ref_Struct(self: Box<&Struct>, 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-struct-async.rs:21:9
   |
LL |     async fn pin_ref_Struct(self: Pin<&Struct>, 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-struct-async.rs:25:9
   |
LL |     async fn box_box_ref_Struct(self: Box<Box<&Struct>>, 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-struct-async.rs:29:9
   |
LL |     async fn box_pin_Struct(self: Box<Pin<&Struct>>, 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 5 previous errors

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