error[E0308]: mismatched types
  --> $DIR/inner-or-pat-2.rs:6:54
   |
LL |     match x {
   |           - this expression has type `&str`
LL |         x @ ((("h" | "ho" | "yo" | ("dude" | "w")) | () | "nop") | ("hey" | "gg")) |
   |                                                      ^^ expected `str`, found `()`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0308`.