Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e7decaefe2c84e39a416432725b692ee : SUCCESS in 7m 33s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/34878492b8724606be2cbd94ae9f2bbe : FAILURE in 6m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/749f15f9e2a64ec1b2e5736cfc68abec : SUCCESS in 7m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/c2a7c2e195024cee86d4e5dc5b64d291 : SUCCESS in 8m 26s