error[E0004]: non-exhaustive patterns: type `EmptyNonExhaustiveEnum` is non-empty
  --> $DIR/enum.rs:7:11
   |
LL |     match x {}
   |           ^
   |
note: `EmptyNonExhaustiveEnum` defined here
  --> $DIR/auxiliary/enums.rs:18:1
   |
LL | pub enum EmptyNonExhaustiveEnum {}
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: the matched value is of type `EmptyNonExhaustiveEnum`, which is marked as non-exhaustive
help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern as shown
   |
LL ~     match x {
LL +         _ => todo!(),
LL ~     }
   |

error[E0004]: non-exhaustive patterns: `_` not covered
  --> $DIR/enum.rs:16:11
   |
LL |     match enum_unit {
   |           ^^^^^^^^^ pattern `_` not covered
   |
note: `NonExhaustiveEnum` defined here
  --> $DIR/auxiliary/enums.rs:4:1
   |
LL | pub enum NonExhaustiveEnum {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: the matched value is of type `NonExhaustiveEnum`
   = note: `NonExhaustiveEnum` is marked as non-exhaustive, so a wildcard `_` is necessary to match exhaustively
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 ~         NonExhaustiveEnum::Struct { .. } => "third",
LL +         _ => todo!()
   |

error[E0004]: non-exhaustive patterns: `_` not covered
  --> $DIR/enum.rs:23:11
   |
LL |     match enum_unit {};
   |           ^^^^^^^^^ pattern `_` not covered
   |
note: `NonExhaustiveEnum` defined here
  --> $DIR/auxiliary/enums.rs:4:1
   |
LL | pub enum NonExhaustiveEnum {
   | ^^^^^^^^^^^^^^^^^^^^^^^^^^
   = note: the matched value is of type `NonExhaustiveEnum`
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 ~     match enum_unit {
LL +         _ => todo!(),
LL ~     };
   |

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0004`.