error: local ambiguity: multiple parsing options: built-in NTs ident ('i') or ident ('j').
  --> $DIR/local-ambiguity-multiple-parsing-options.rs:7:12
   |
LL | ambiguity!(error);
   |            ^^^^^

error: local ambiguity: multiple parsing options: built-in NTs ident ('i') or ident ('j').
  --> $DIR/local-ambiguity-multiple-parsing-options.rs:8:12
   |
LL | ambiguity!(error);
   |            ^^^^^

error: aborting due to 2 previous errors

