1 error[E0308]: mismatched types
2 --> $DIR/issue-7061.rs:4:46
4 LL | fn foo(&'a mut self) -> Box<BarStruct> { self }
5 | -------------- ^^^^ expected struct `std::boxed::Box`, found &mut BarStruct
7 | expected `std::boxed::Box<BarStruct>` because of return type
9 = note: expected struct `std::boxed::Box<BarStruct>`
10 found mutable reference `&'a mut BarStruct`
12 error: aborting due to previous error
14 For more information about this error, try `rustc --explain E0308`.