src/test/ui/issues/issue-pr29383.rs

enum E {
    A,
    B,
}

fn main() {
    match None {
        None => {}
        Some(E::A(..)) => {} //~ ERROR expected tuple struct/variant, found unit variant `E::A`
        Some(E::B(..)) => {} //~ ERROR expected tuple struct/variant, found unit variant `E::B`
    }
}