error[E0700]: hidden type for `impl Debug` captures lifetime that does not appear in bounds | |
--> $DIR/impl-fn-hrtb-bounds-2.rs:5:9 | |
| | |
LL | fn a() -> impl Fn(&u8) -> impl Debug { | |
| ---------- opaque type defined here | |
LL | |x| x | |
| --- ^ | |
| | | |
| hidden type `&u8` captures the anonymous lifetime as defined here | |
error: aborting due to 1 previous error | |
For more information about this error, try `rustc --explain E0700`. |