src/test/ui/pattern/usefulness/unstable-gated-patterns.stderr

   1 error[E0004]: non-exhaustive patterns: `Unstable` not covered
   2   --> $DIR/unstable-gated-patterns.rs:10:11
   3    |
   4 LL |     match UnstableEnum::Stable {
   5    |           ^^^^^^^^^^^^^^^^^^^^ pattern `Unstable` not covered
   6    |
   7 note: `UnstableEnum` defined here
   8   --> $DIR/auxiliary/unstable.rs:11:5
   9    |
  10 LL | / pub enum UnstableEnum {
  11 LL | |     #[stable(feature = "stable_test_feature", since = "1.0.0")]
  12 LL | |     Stable,
  13 LL | |     #[stable(feature = "stable_test_feature", since = "1.0.0")]
  14 ...  |
  15 LL | |     Unstable,
  16    | |     ^^^^^^^^ not covered
  17 LL | | }
  18    | |_-
  19    = note: the matched value is of type `UnstableEnum`
  20 help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown
  21    |
  22 LL ~         UnstableEnum::Stable2 => {}
  23 LL +         Unstable => todo!()
  24    |
  25
  26 error: aborting due to previous error
  27
  28 For more information about this error, try `rustc --explain E0004`.