check the status of the batch operation too - forgot this

benchmarks/benchmark.hpp

@@ -87,6 +87,9 @@ void* thread_function(void* argp) {
 
             const auto et = std::chrono::high_resolution_clock::now();
 
+            const dml::status_code status = result.status;
+            CHECK_STATUS(status, "Batch completed with an Error!");
+
             submission_durations.emplace_back(std::chrono::duration_cast<std::chrono::microseconds>(se - st).count());
             completion_durations.emplace_back(std::chrono::duration_cast<std::chrono::microseconds>(et - se).count());
             combined_durations.emplace_back(std::chrono::duration_cast<std::chrono::microseconds>(et - st).count());