{"ast_node_type":"other","tokens":[{"end":96,"kind":"keyword","start":0,"text":"self.buffer_error(self.infcx.err_ctxt().construct_generic_bound_failure("}]}
                        self.buffer_error(self.infcx.err_ctxt().construct_generic_bound_failure(
                            SubregionOrigin::RelateParamBound(type_test_span, generic_ty, None);
                            self.body.source.def_id().expect_local(),