error: lifetime may not live long enough
  --> $DIR/ref-mut-struct-async.rs:13:9
   |
LL |     async fn ref_Struct(self: &mut Struct, f: &u32) -> &u32 {
   |                               -               - let's call the lifetime of this reference `'1`
   |                               |
   |                               let's call the lifetime of this reference `'2`
LL |         f
   |         ^ method was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn ref_Struct<'a>(self: &mut Struct, f: &'a u32) -> &'a u32 {
   |                        ++++                        ++          ++

error: lifetime may not live long enough
  --> $DIR/ref-mut-struct-async.rs:18:9
   |
LL |     async fn box_ref_Struct(self: Box<&mut Struct>, f: &u32) -> &u32 {
   |                                       -                - let's call the lifetime of this reference `'1`
   |                                       |
   |                                       let's call the lifetime of this reference `'2`
LL |         f
   |         ^ method was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn box_ref_Struct<'a>(self: Box<&mut Struct>, f: &'a u32) -> &'a u32 {
   |                            ++++                             ++          ++

error: lifetime may not live long enough
  --> $DIR/ref-mut-struct-async.rs:23:9
   |
LL |     async fn pin_ref_Struct(self: Pin<&mut Struct>, f: &u32) -> &u32 {
   |                                       -                - let's call the lifetime of this reference `'1`
   |                                       |
   |                                       let's call the lifetime of this reference `'2`
LL |         f
   |         ^ method was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn pin_ref_Struct<'a>(self: Pin<&mut Struct>, f: &'a u32) -> &'a u32 {
   |                            ++++                             ++          ++

error: lifetime may not live long enough
  --> $DIR/ref-mut-struct-async.rs:28:9
   |
LL |     async fn box_box_ref_Struct(self: Box<Box<&mut Struct>>, f: &u32) -> &u32 {
   |                                               -                 - let's call the lifetime of this reference `'1`
   |                                               |
   |                                               let's call the lifetime of this reference `'2`
LL |         f
   |         ^ method was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn box_box_ref_Struct<'a>(self: Box<Box<&mut Struct>>, f: &'a u32) -> &'a u32 {
   |                                ++++                                  ++          ++

error: lifetime may not live long enough
  --> $DIR/ref-mut-struct-async.rs:33:9
   |
LL |     async fn box_pin_ref_Struct(self: Box<Pin<&mut Struct>>, f: &u32) -> &u32 {
   |                                               -                 - let's call the lifetime of this reference `'1`
   |                                               |
   |                                               let's call the lifetime of this reference `'2`
LL |         f
   |         ^ method was supposed to return data with lifetime `'2` but it is returning data with lifetime `'1`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn box_pin_ref_Struct<'a>(self: Box<Pin<&mut Struct>>, f: &'a u32) -> &'a u32 {
   |                                ++++                                  ++          ++

error: aborting due to 5 previous errors