{"ast_node_type":"other","tokens":[{"end":58,"kind":"keyword","start":0,"text":"self.rbv.late_bound_vars[&hir_id.local_id]"}]}
                self.rbv.late_bound_vars[&hir_id.local_id]
                "overwrote bound vars for {hir_id:?}:\nold={old:?}\nnew={:?}",
            )