| error[E0004]: non-exhaustive patterns: `_` not covered | |
| --> $DIR/issue-3601.rs:30:44 | |
| | | |
| LL | box NodeKind::Element(ed) => match ed.kind { | |
| | ^^^^^^^ pattern `_` not covered | |
| | | |
| = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0004`. |