error: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:7:16
   |
LL |     ($a:ident, $a:ident) => {};
   |      --------  ^^^^^^^^ duplicate binding
   |      |
   |      previous binding

error: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:8:16
   |
LL |     ($a:ident, $a:path) => {};
   |      --------  ^^^^^^^ duplicate binding
   |      |
   |      previous binding

error: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:17:18
   |
LL |     ($a:ident, $($a:ident),*) => {};
   |      --------    ^^^^^^^^ duplicate binding
   |      |
   |      previous binding

error: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:18:25
   |
LL |     ($($a:ident)+ # $($($a:path),+);*) => {};
   |        --------         ^^^^^^^ duplicate binding
   |        |
   |        previous binding

error: aborting due to 4 previous errors