error[E0004]: non-exhaustive patterns: `U8AsBool { n: 0_u8 }` and `U8AsBool { b: false }` not covered --> $DIR/unions.rs:22:15 | LL | match x { | ^ patterns `U8AsBool { n: 0_u8 }` and `U8AsBool { b: false }` not covered | note: `U8AsBool` defined here --> $DIR/unions.rs:3:11 | LL | union U8AsBool { | ^^^^^^^^ = note: the matched value is of type `U8AsBool` 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 ~ U8AsBool { n: 1.. } => {}, LL + U8AsBool { n: 0_u8 } | U8AsBool { b: false } => todo!() | error[E0004]: non-exhaustive patterns: `(U8AsBool { n: 0_u8 }, false)`, `(U8AsBool { b: false }, false)`, `(U8AsBool { n: 0_u8 }, false)` and 1 more not covered --> $DIR/unions.rs:28:15 | LL | match (x, true) { | ^^^^^^^^^ patterns `(U8AsBool { n: 0_u8 }, false)`, `(U8AsBool { b: false }, false)`, `(U8AsBool { n: 0_u8 }, false)` and 1 more not covered | = note: the matched value is of type `(U8AsBool, bool)` 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 ~ (U8AsBool { n: 1.. }, true) => {}, LL + _ => todo!() | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0004`.