pooledOnlyDifferences property
Scenario ids that differed when replayed beside others under --jobs,
and were not a finding once replayed again alone — so were reported as
the alone replay found them.
The machine's load reached what these scenarios record: work on the real
event loop that lands earlier or later on a busy host. Each costs a
serial replay on every comparison that runs it with --jobs.
Implementation
final List<String> pooledOnlyDifferences;