error[E0532]: expected tuple struct or tuple variant, found variant `FooB` --> $DIR/issue-19086.rs:10:9 | LL | FooB { x: i32, y: i32 } | ----------------------- `FooB` defined here ... LL | FooB(a, b) => println!("{} {}", a, b), | ^^^^^^^^^^ help: use struct pattern syntax instead: `FooB { x: a, y: b }` error: aborting due to previous error For more information about this error, try `rustc --explain E0532`.