error[E0532]: expected tuple struct/variant, found struct variant `FooB` --> $DIR/issue-19086.rs:10:9 | LL | FooB(a, b) => println!("{} {}", a, b), | ^^^^ did you mean `FooB { /* fields */ }`? error: aborting due to previous error For more information about this error, try `rustc --explain E0532`.