error: you don't need to add `&` to both the expression and the patterns --> $DIR/ice-2636.rs:21:9 | LL | / match $foo { LL | | $ ( & $t => $ord, LL | | )* LL | | }; | |_________^ ... LL | test_hash!(&a, A => 0, B => 1, C => 2); | --------------------------------------- in this macro invocation | = note: `-D clippy::match-ref-pats` implied by `-D warnings` error: aborting due to previous error