rust/src/test/ui/structs/struct-like-enum-nonexhaustive.stderr

error[E0004]: non-exhaustive patterns: `B { x: Some(_) }` not covered
  --> $DIR/struct-like-enum-nonexhaustive.rs:8:11
   |
LL |     match x {   //~ ERROR non-exhaustive patterns
   |           ^ pattern `B { x: Some(_) }` not covered

error: aborting due to previous error

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