Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c6f9ea8345134c38bdb0f0be415b67ee : SUCCESS in 6m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5cff207b647f4d7f9432f346872fa096 : FAILURE in 4m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/91418f10c618409e99e5604d77bb4d5b : SUCCESS in 6m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/925f1f841fd14c51aa686b448742f5bb : SUCCESS in 6m 18s