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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/70a298c184804bbf99e220fbf53af5cb : FAILURE in 9m 18s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/66c77e36c42542eb83c10a4f7d465602 : SUCCESS in 7m 33s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7dc9c21d16f7429a9c6d1bada9633f1f : SUCCESS in 8m 19s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/77da56d8327d4a66ace746c5360f6d14 : SUCCESS in 8m 06s