1 error[E0004]: non-exhaustive patterns: type `()` is non-empty
2 --> $DIR/issue-3096-1.rs:2:11
4 LL | match () { } //~ ERROR non-exhaustive
7 = help: ensure that all possible cases are being handled, possibly by adding wildcards or more match arms
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0004`.