error: expected one of `=>`, `if`, or `|`, found `=` --> $DIR/issue-89396.rs:9:17 | LL | Some(_) = true, | ^ | | | expected one of `=>`, `if`, or `|` | help: use a fat arrow to start a match arm: `=>` error: expected one of `=>`, `@`, `if`, or `|`, found `->` --> $DIR/issue-89396.rs:12:14 | LL | None -> false, | ^^ | | | expected one of `=>`, `@`, `if`, or `|` | help: use a fat arrow to start a match arm: `=>` error: aborting due to 2 previous errors