Since 10924.0.0, lots (hundred or more) of crashes during test run due to selinux policy violation.
Many of these crashes are relevant to the test we want running, so the test didn't fail. However, the test framework still analyze and collect crash logs. This takes extra half hours or more time.

This affected bisect duration a lot. Before these crashes resolved, and prevent future similar situation, we should be able to disable crash log collecting. I skim the source code and haven't found command line flag to do so.