error[E0004]: non-exhaustive patterns: `(2u8..=std::u8::MAX, _)` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:13:11 | LL | match (0u8, 0u8) { | ^^^^^^^^^^ pattern `(2u8..=std::u8::MAX, _)` not covered | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms error[E0004]: non-exhaustive patterns: `((4u8..=std::u8::MAX))` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:17:11 | LL | match ((0u8,),) { | ^^^^^^^^^ pattern `((4u8..=std::u8::MAX))` not covered | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms error[E0004]: non-exhaustive patterns: `(Some(2u8..=std::u8::MAX))` not covered --> $DIR/exhaustiveness-non-exhaustive.rs:21:11 | LL | match (Some(0u8),) { | ^^^^^^^^^^^^ pattern `(Some(2u8..=std::u8::MAX))` not covered | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms error: or-patterns are not fully implemented yet --> $DIR/exhaustiveness-non-exhaustive.rs:9:10 | LL | (0 | _,) => {} | ^^^^^ error: aborting due to 4 previous errors For more information about this error, try `rustc --explain E0004`.