{"ast_node_type":"other","tokens":[{"end":82,"kind":"keyword","start":0,"text":"//"}]}
        // The error type of the inner closure here is somewhat funny. We have two
    ) -> InterpResult<'tcx, &Allocation<M::Provenance, M::AllocExtra, M::Bytes>> {
        // ways of "erroring": An actual error, or because we got a reference from