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

Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/f59e9fdef0a24828a9765b0d63a4481e : SUCCESS in 8m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/123cdd5253334d1e94fd52648b10e260 : FAILURE in 5m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3cab5017c34541709083acd955d40e8a : SUCCESS in 6m 55s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/87b584b219ce423ab08a176240c43fde : SUCCESS in 7m 26s