warning: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:12:6
   |
LL |     ($a:ident, $a:ident) => {};
   |      ^^^^^^^^  ^^^^^^^^
   |
note: lint level defined here
  --> $DIR/macro-multiple-matcher-bindings.rs:9:9
   |
LL | #![warn(duplicate_matcher_binding_name)]
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>

warning: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:13:6
   |
LL |     ($a:ident, $a:path) => {};
   |      ^^^^^^^^  ^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>

warning: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:22:6
   |
LL |     ($a:ident, $($a:ident),*) => {};
   |      ^^^^^^^^    ^^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>

warning: duplicate matcher binding
  --> $DIR/macro-multiple-matcher-bindings.rs:23:8
   |
LL |     ($($a:ident)+ # $($($a:path),+);*) => {};
   |        ^^^^^^^^         ^^^^^^^
   |
   = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
   = note: for more information, see issue #57593 <https://github.com/rust-lang/rust/issues/57593>