vdsm_master_check-patch fails consistently before starting the build

[Nir Soffer]

Hi all,

http://jenkins.ovirt.org/job/vdsm_master_check-patch-fc24-x86_64/
http://jenkins.ovirt.org/job/vdsm_master_check-patch-el7-x86_64/

Seems to fail here:

22:17:59 Start: yum install
22:28:10 ERROR: Command failed. See logs for output.

tests are fine on travis (except some know failures).
https://travis-ci.org/oVirt/vdsm/builds/172772499

tests are fine locally on fedora 24.

Please check.

Thanks,
Nir