Comment 1 for bug 1652657

There is a link for the log:
http://logs.openstack.org/86/414986/2/check/gate-grenade-dsvm-neutron-multinode-ubuntu-xenial/91d2de3/logs/grenade.sh.txt.gz

I suppose that problem is related to keystone API v3.
Because user in keystone v3 does not owned for any project and for him we need assign a role