error: `_x @` is not allowed in a tuple struct
  --> $DIR/issue-72574-2.rs:6:20
   |
LL |         Binder(_a, _x @ ..) => {}
   |                    ^^^^^^^ this is only allowed in slice patterns
   |
   = help: remove this and bind each tuple field independently
help: if you don't need to use the contents of _x, discard the tuple's remaining fields
   |
LL |         Binder(_a, ..) => {}
   |                    ^^

error: aborting due to previous error