Summary:
Recently db_stress starts to use a special Env that keeps all manifest files. This should not apply to checkpoint directory and causes test failure like this:
Verification failed: Checkpoint gave inconsistent state. Status is IO error: While mkdir: /dev/shm/rocksdb/rocksdb_crashtest_whitebox/.checkpoint27.tmp: File exists
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6233
Test Plan: Run crash_test with high chance of checkpoint and make sure it doesn't reproduce.
Differential Revision: D19207250
fbshipit-source-id: 12a931379e2e0572bb84aa658b6d03770c8551d4
e0f9d11a05