1 error[E0005]: refutable pattern in local binding: `T(_, _)` not covered
2 --> $DIR/empty-never-array.rs:10:9
4 LL | / enum Helper<T, U> {
6 LL | | #[allow(dead_code)]
9 | |_- `Helper<T, U>` defined here
11 LL | let Helper::U(u) = Helper::T(t, []);
12 | ^^^^^^^^^^^^ pattern `T(_, _)` not covered
14 error: aborting due to previous error
16 For more information about this error, try `rustc --explain E0005`.