I had 3 failures with OST master:
https://jenkins.ovirt.org/blue/organizations/jenkins/ovirt-system-tests_manual/detail/ovirt-system-tests_manual/5061/pipeline/
https://jenkins.ovirt.org/blue/organizations/jenkins/ovirt-system-tests_manual/detail/ovirt-system-tests_manual/5062/pipeline
https://jenkins.ovirt.org/blue/organizations/jenkins/ovirt-system-tests_manual/detail/ovirt-system-tests_manual/5063/pipeline

First 2 builds are mostly logging fixes in vdsm and removing dead code, unrelated to the failures.
Last build is from master, same patch passed OST today here:
https://jenkins.ovirt.org/blue/organizations/jenkins/ovirt-system-tests_manual/detail/ovirt-system-tests_manual/5059/pipeline/

Looks like some required packages are missing.

+ yum -y install ovirt-host

Error: Package: 7:device-mapper-event-1.02.149-10.el7_6.8.x86_64 (alocalsync)

           Requires: device-mapper = 7:1.02.149-10.el7_6.8

           Installed: 7:device-mapper-1.02.149-10.el7_6.7.x86_64 (installed)

               device-mapper = 7:1.02.149-10.el7_6.7

Error: Package: systemd-python-219-62.el7_6.7.x86_64 (alocalsync)

           Requires: systemd-libs = 219-62.el7_6.7

           Installed: systemd-libs-219-62.el7_6.6.x86_64 (installed)

               systemd-libs = 219-62.el7_6.6

Error: Package: systemd-python-219-62.el7_6.7.x86_64 (alocalsync)

           Requires: systemd = 219-62.el7_6.7

           Installed: systemd-219-62.el7_6.6.x86_64 (installed)

               systemd = 219-62.el7_6.6

Error: Package: libgudev1-219-62.el7_6.7.x86_64 (alocalsync)

           Requires: systemd-libs = 219-62.el7_6.7

           Installed: systemd-libs-219-62.el7_6.6.x86_64 (installed)

               systemd-libs = 219-62.el7_6.6