src/test/ui/parser/pat-tuple-3.stderr

error: `..` can only be used once per tuple pattern
  --> $DIR/pat-tuple-3.rs:3:19
   |
LL |         (.., pat, ..) => {}
   |          --       ^^ can only be used once per tuple pattern
   |          |
   |          previously used here

error: aborting due to previous error