ovirt-hosted-engine-ha standard-on-merge fails in _cpickle_loads

Hi, Please see e.g. [1][2] (console log shows nothing): [2021-12-16T13:11:30.371Z] File "/home/jenkins/workspace/ovirt-4.4_change-queue/jenkins/stdci_libs/jenkins_objects.py", line 223, in _cpickle_loads [2021-12-16T13:11:30.371Z] return pk.load() [2021-12-16T13:11:30.371Z] ValueError: unsupported pickle protocol: 3 script returned exit code 1 Thanks, [1] https://jenkins.ovirt.org/job/ovirt-hosted-engine-ha_standard-on-merge/85/ [2] https://jenkins.ovirt.org/blue/organizations/jenkins/ovirt-4.4_change-queue/... -- Didi