[Openstack-stable-maint] Stable check of openstack/zaqar for ref refs/heads/stable/train failed

Build failed. https://zuul.opendev.org/t/openstack/buildset/b42d001c5a4348bb94da080c35160e... - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e26802d4da0d43f480fa3be2ab713add : SUCCESS in 5m 43s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/27e8d1082b6249778b9b45e57e79aa3c : SUCCESS in 11m 49s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/8a74cea2da524b888ce234972d675d4a : SUCCESS in 11m 05s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/9f2b0a1eeba54805888c0ea44bb52156 : FAILURE in 13m 37s