Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/786994ac455c495991df2685f27184f7 : SUCCESS in 7m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4a368bd925a04603bc00495c9b688883 : FAILURE in 6m 06s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9b21c8871ec84fad9a3cc223617453d4 : SUCCESS in 5m 39s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1bdecbf50f9b431d8a18fd0350db5429 : FAILURE in 9m 47s