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 | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms = note: the matched value is of type `(u8, u8)` 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 | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms = note: the matched value is of type `((u8,),)` 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 | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms = note: the matched value is of type `(Option,)` error: aborting due to 3 previous errors For more information about this error, try `rustc --explain E0004`.