error[E0004]: non-exhaustive patterns: `(2_u8..=u8::MAX, _)` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:5:11 | LL | match (0u8, 0u8) { | ^^^^^^^^^^ pattern `(2_u8..=u8::MAX, _)` not covered | = note: the matched value is of type `(u8, u8)` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ (0 | 1, 2 | 3) => {}, LL + (2_u8..=u8::MAX, _) => todo!() | error[E0004]: non-exhaustive patterns: `((4_u8..=u8::MAX))` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:9:11 | LL | match ((0u8,),) { | ^^^^^^^^^ pattern `((4_u8..=u8::MAX))` not covered | = note: the matched value is of type `((u8,),)` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ ((0 | 1,) | (2 | 3,),) => {}, LL + ((4_u8..=u8::MAX)) => todo!() | error[E0004]: non-exhaustive patterns: `(Some(2_u8..=u8::MAX))` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:13:11 | LL | match (Some(0u8),) { | ^^^^^^^^^^^^ pattern `(Some(2_u8..=u8::MAX))` not covered | = note: the matched value is of type `(Option,)` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ (None | Some(0 | 1),) => {}, LL + (Some(2_u8..=u8::MAX)) => todo!() | error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0004`.