error[E0004]: non-exhaustive patterns: `&[0_u8..=64_u8, _, _, _]` and `&[66_u8..=u8::MAX, _, _, _]` not covered --> $DIR/match-byte-array-patterns-2.rs:4:11 | LL | match buf { | ^^^ patterns `&[0_u8..=64_u8, _, _, _]` and `&[66_u8..=u8::MAX, _, _, _]` not covered | = note: the matched value is of type `&[u8; 4]` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms | LL ~ b"AAAA" => {}, LL + &[0_u8..=64_u8, _, _, _] | &[66_u8..=u8::MAX, _, _, _] => todo!() | error[E0004]: non-exhaustive patterns: `&[]`, `&[_]`, `&[_, _]` and 2 more not covered --> $DIR/match-byte-array-patterns-2.rs:10:11 | LL | match buf { | ^^^ patterns `&[]`, `&[_]`, `&[_, _]` and 2 more 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 as shown, or multiple match arms | LL ~ b"AAAA" => {}, LL + _ => todo!() | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0004`.