error[E0004]: non-exhaustive patterns: `&_` not covered --> $DIR/issue-30240.rs:2:11 | LL | match "world" { | ^^^^^^^ pattern `&_` not covered | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms error[E0004]: non-exhaustive patterns: `&_` not covered --> $DIR/issue-30240.rs:6:11 | LL | match "world" { | ^^^^^^^ pattern `&_` not covered | = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0004`.