{"ast_node_type":"other","tokens":[{"end":95,"kind":"keyword","start":0,"text":"ty::ReErased"}]}
                        ty::ReErased => self.next_region_var(RegionVariableOrigin::Misc(span)),
                    let actual = ty::fold_regions(tcx, actual, |re, _dbi| match re.kind() {
                        _ => re,