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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cdb8e42243ce40d4988b3d6e677bdd55 : SUCCESS in 7m 09s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9962d45dca4347bc8363858e9c6b14dc : SUCCESS in 13m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/dfdd3233ad954fa783882f092d636fed : SUCCESS in 11m 51s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ff38e8ebd1174fac97bb3c8f39428685 : FAILURE in 11m 48s