error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:16:9
   |
LL |     async fn ref_Struct(self: &Struct, f: &u32) -> &u32 {
   |                               -           - let's call the lifetime of this reference `'1`
   |                               |
   |                               let's call the lifetime of this reference `'2`
LL |         f
   |         ^ associated function was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:22:9
   |
LL |     async fn box_ref_Struct(self: Box<&Struct>, f: &u32) -> &u32 {
   |                                       -            - let's call the lifetime of this reference `'1`
   |                                       |
   |                                       let's call the lifetime of this reference `'2`
LL |         f
   |         ^ associated function was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:28:9
   |
LL |     async fn pin_ref_Struct(self: Pin<&Struct>, f: &u32) -> &u32 {
   |                                       -            - let's call the lifetime of this reference `'1`
   |                                       |
   |                                       let's call the lifetime of this reference `'2`
LL |         f
   |         ^ associated function was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:34:9
   |
LL |     async fn box_box_ref_Struct(self: Box<Box<&Struct>>, f: &u32) -> &u32 {
   |                                               -             - let's call the lifetime of this reference `'1`
   |                                               |
   |                                               let's call the lifetime of this reference `'2`
LL |         f
   |         ^ associated function was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:40:9
   |
LL |     async fn box_pin_Struct(self: Box<Pin<&Struct>>, f: &u32) -> &u32 {
   |                                           -             - let's call the lifetime of this reference `'1`
   |                                           |
   |                                           let's call the lifetime of this reference `'2`
LL |         f
   |         ^ associated function was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`

error: aborting due to 5 previous errors