1 error[E0004]: non-exhaustive patterns: `B { x: Some(_) }` not covered
2 --> $DIR/struct-like-enum-nonexhaustive.rs:8:11
5 LL | | B { x: Option<isize> },
12 | ^ pattern `B { x: Some(_) }` not covered
14 = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
15 = note: the matched value is of type `A`
17 error: aborting due to previous error
19 For more information about this error, try `rustc --explain E0004`.