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error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:13:9
   |
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`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn ref_Struct<'a>(self: &'a Struct, f: &'a u32) -> &u32 {
   |                        ++++        ++             ++

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:18:9
   |
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`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn box_ref_Struct<'a>(self: Box<&'a Struct>, f: &'a u32) -> &u32 {
   |                            ++++            ++              ++

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:23:9
   |
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`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn pin_ref_Struct<'a>(self: Pin<&'a Struct>, f: &'a u32) -> &u32 {
   |                            ++++            ++              ++

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:28:9
   |
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`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn box_box_ref_Struct<'a>(self: Box<Box<&'a Struct>>, f: &'a u32) -> &u32 {
   |                                ++++                ++               ++

error: lifetime may not live long enough
  --> $DIR/ref-struct-async.rs:33:9
   |
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`
   |
help: consider introducing a named lifetime parameter and update trait if needed
   |
LL |     async fn box_pin_Struct<'a>(self: Box<Pin<&'a Struct>>, f: &'a u32) -> &u32 {
   |                            ++++                ++               ++

error: aborting due to 5 previous errors