[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/30f776f7bb2a446ebfc18826e0d4ab9b : SUCCESS in 7m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/aa65307f67544091a2558be855ff6722 : FAILURE in 15m 23s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d9a80e3b2e5642aea81ec38d2f754cfa : SUCCESS in 11m 49s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8806c225f45f4e818d88d5cdf005bab1 : SUCCESS in 17m 28s