std::runtime_error e("payload");
for (size_t i = 0; i < iters; ++i) {
auto ew = folly::make_exception_wrapper<std::runtime_error>(e);
std::runtime_error e("payload");
for (size_t i = 0; i < iters; ++i) {
auto ew = folly::make_exception_wrapper<std::runtime_error>(e);