error[E0004]: non-exhaustive patterns: `UnstableEnum::Stable2` and `_` not covered --> $DIR/stable-gated-patterns.rs:8:11 | LL | match UnstableEnum::Stable { | ^^^^^^^^^^^^^^^^^^^^ patterns `UnstableEnum::Stable2` and `_` not covered | note: `UnstableEnum` defined here --> $DIR/auxiliary/unstable.rs:9:5 | LL | pub enum UnstableEnum { | --------------------- ... LL | Stable2, | ^^^^^^^ not covered = note: the matched value is of type `UnstableEnum` 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 ~ UnstableEnum::Stable => {}, LL + UnstableEnum::Stable2 | _ => todo!() | error[E0004]: non-exhaustive patterns: `_` not covered --> $DIR/stable-gated-patterns.rs:13:11 | LL | match UnstableEnum::Stable { | ^^^^^^^^^^^^^^^^^^^^ pattern `_` not covered | note: `UnstableEnum` defined here --> $DIR/auxiliary/unstable.rs:5:1 | LL | pub enum UnstableEnum { | ^^^^^^^^^^^^^^^^^^^^^ = note: the matched value is of type `UnstableEnum` 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 ~ UnstableEnum::Stable2 => {}, LL + _ => todo!() | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0004`.