error[E0308]: mismatched types --> $DIR/inner-or-pat.rs:38:54 | 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 1 previous error For more information about this error, try `rustc --explain E0308`.