error[E0004]: non-exhaustive patterns: `Foo { first: false, second: Some([_, _, _, _]) }` not covered --> $DIR/non-exhaustive-pattern-witness.rs:7:11 | LL | match (Foo { first: true, second: None }) { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pattern `Foo { first: false, second: Some([_, _, _, _]) }` not covered | note: `Foo` defined here --> $DIR/non-exhaustive-pattern-witness.rs:1:8 | LL | struct Foo { | ^^^ = note: the matched value is of type `Foo` 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 ~ Foo { first: false, second: Some([1, 2, 3, 4]) } => (), LL + Foo { first: false, second: Some([_, _, _, _]) } => todo!() | error[E0004]: non-exhaustive patterns: `Color::Red` not covered --> $DIR/non-exhaustive-pattern-witness.rs:23:11 | LL | match Color::Red { | ^^^^^^^^^^ pattern `Color::Red` not covered | note: `Color` defined here --> $DIR/non-exhaustive-pattern-witness.rs:17:5 | LL | enum Color { | ----- LL | Red, | ^^^ not covered = note: the matched value is of type `Color` 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 ~ Color::Green => (), LL + Color::Red => todo!() | error[E0004]: non-exhaustive patterns: `Direction::East`, `Direction::South` and `Direction::West` not covered --> $DIR/non-exhaustive-pattern-witness.rs:35:11 | LL | match Direction::North { | ^^^^^^^^^^^^^^^^ patterns `Direction::East`, `Direction::South` and `Direction::West` not covered | note: `Direction` defined here --> $DIR/non-exhaustive-pattern-witness.rs:31:12 | LL | enum Direction { | --------- LL | North, East, South, West | ^^^^ ^^^^^ ^^^^ not covered | | | | | not covered | not covered = note: the matched value is of type `Direction` 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 ~ Direction::North => (), LL + Direction::East | Direction::South | Direction::West => todo!() | error[E0004]: non-exhaustive patterns: `ExcessiveEnum::Second`, `ExcessiveEnum::Third`, `ExcessiveEnum::Fourth` and 8 more not covered --> $DIR/non-exhaustive-pattern-witness.rs:46:11 | LL | match ExcessiveEnum::First { | ^^^^^^^^^^^^^^^^^^^^ patterns `ExcessiveEnum::Second`, `ExcessiveEnum::Third`, `ExcessiveEnum::Fourth` and 8 more not covered | note: `ExcessiveEnum` defined here --> $DIR/non-exhaustive-pattern-witness.rs:41:6 | LL | enum ExcessiveEnum { | ^^^^^^^^^^^^^ = note: the matched value is of type `ExcessiveEnum` 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 ~ ExcessiveEnum::First => (), LL + _ => todo!() | error[E0004]: non-exhaustive patterns: `Color::CustomRGBA { a: true, .. }` not covered --> $DIR/non-exhaustive-pattern-witness.rs:54:11 | LL | match Color::Red { | ^^^^^^^^^^ pattern `Color::CustomRGBA { a: true, .. }` not covered | note: `Color` defined here --> $DIR/non-exhaustive-pattern-witness.rs:19:5 | LL | enum Color { | ----- ... LL | CustomRGBA { a: bool, r: u8, g: u8, b: u8 } | ^^^^^^^^^^ not covered = note: the matched value is of type `Color` 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 ~ Color::CustomRGBA { a: false, r: _, g: _, b: _ } => (), LL + Color::CustomRGBA { a: true, .. } => todo!() | error[E0004]: non-exhaustive patterns: `[Enum::Second(true), Enum::Second(false)]` not covered --> $DIR/non-exhaustive-pattern-witness.rs:70:11 | LL | match *x { | ^^ pattern `[Enum::Second(true), Enum::Second(false)]` not covered | = note: the matched value is of type `[Enum]` 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 ~ [_, _, ref tail @ .., _] => (), LL + [Enum::Second(true), Enum::Second(false)] => todo!() | error[E0004]: non-exhaustive patterns: `((), false)` not covered --> $DIR/non-exhaustive-pattern-witness.rs:83:11 | LL | match ((), false) { | ^^^^^^^^^^^ pattern `((), false)` not covered | = note: the matched value is of type `((), bool)` 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 ~ ((), true) => (), LL + ((), false) => todo!() | error: aborting due to 7 previous errors For more information about this error, try `rustc --explain E0004`.