|  | //@ run-rustfix | 
|  | #![allow(non_snake_case, dead_code)] | 
|  |  | 
|  | use std::pin::Pin; | 
|  |  | 
|  | struct Struct {} | 
|  |  | 
|  | impl Struct { | 
|  | // Test using `&mut Struct` explicitly: | 
|  |  | 
|  | fn ref_Struct<'a>(self: &mut Struct, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn box_ref_Struct<'a>(self: Box<&mut Struct>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn pin_ref_Struct<'a>(self: Pin<&mut Struct>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn box_box_ref_Struct<'a>(self: Box<Box<&mut Struct>>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  |  | 
|  | fn box_pin_ref_Struct<'a>(self: Box<Pin<&mut Struct>>, f: &'a u32) -> &'a u32 { | 
|  | f | 
|  | //~^ ERROR lifetime may not live long enough | 
|  | } | 
|  | } | 
|  |  | 
|  | fn main() {} |