[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/38d0f96a2cbe41308282a4e0e158e85c : SUCCESS in 12m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5dd9c79bd32c4e17a9810a6f798e3445 : SUCCESS in 18m 20s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/94f1013b27f04ce69c7369834479c540 : FAILURE in 23m 52s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0928c7cbe7bf4b4bb5301a808d548e73 : SUCCESS in 17m 06s