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error[E0004]: non-exhaustive patterns: `B` not covered
  --> $DIR/match_non_exhaustive.rs:23:11
   |
LL | enum L { A, B }
   | ---------------
   | |           |
   | |           not covered
   | `L` defined here
...
LL |     match l { L::A => () };
   |           ^ pattern `B` not covered
   |
   = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
   = note: the matched value is of type `L`

error[E0004]: non-exhaustive patterns: type `E1` is non-empty
  --> $DIR/match_non_exhaustive.rs:28:11
   |
LL |     match e1 {};
   |           ^^
   |
   = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
   = note: the matched value is of type `E1`, which is marked as non-exhaustive

error[E0004]: non-exhaustive patterns: `_` not covered
  --> $DIR/match_non_exhaustive.rs:30:11
   |
LL |     match e2 { E2::A => (), E2::B => () };
   |           ^^ pattern `_` not covered
   |
   = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
   = note: the matched value is of type `E2`, which is marked as non-exhaustive

error: aborting due to 3 previous errors

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