[C++][Dataset] Ignored failures in dataset-scanner-benchmark #39765
Description
Describe the bug, including details regarding any error messages, version, and platform.
When running arrow-dataset-scanner-benchmark locally I get the following failures. They are printed but just ignored afterwards:
[...]
ScanOnlyBench/num_batches:1000/batch_size:10/scan_alg:0/real_time 24661324 ns 2970995 ns 6 bytes_per_second=1.93354M/s items_per_second=40.5493k/s
ScanOnlyBench/num_batches:1000/batch_size:10/scan_alg:1/real_time 15358689 ns 135295 ns 8 bytes_per_second=3.10467M/s items_per_second=65.1097k/s
/home/antoine/arrow/dev/cpp/src/arrow/dataset/scanner_benchmark.cc:165: Failure
Expected equality of these values:
collected->num_columns()
Which is: 6
2
[etc.]
Component(s)
Benchmarking, C++