error[E0308]: `match` arms have incompatible types --> $DIR/old-lub-glb-hr-noteq1.rs:14:14 | LL | let z = match 22 { | _____________- LL | | 0 => x, | | - this is found to be of type `for<'a, 'b> fn(&'a u8, &'b u8) -> &'a u8` LL | | _ => y, | | ^ one type is more general than the other LL | | LL | | LL | | }; | |_____- `match` arms have incompatible types | = note: expected fn pointer `for<'a, 'b> fn(&'a u8, &'b u8) -> &'a u8` found fn pointer `for<'a> fn(&'a u8, &'a u8) -> &'a u8` error: aborting due to previous error For more information about this error, try `rustc --explain E0308`.