Build failed. https://zuul.opendev.org/t/openstack/buildset/7d591a09e7894bcdad991b602c2eebd4 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e3348679801f44b5a07cbfba2275fa8d : SUCCESS in 4m 06s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5738dbaf0995440fbff3dcfd75adfa83 : SUCCESS in 4m 25s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0d593430f34f4ced868bd4b3de2b2635 : SUCCESS in 5m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ff134b1661f44005b7ca46ecaaa5d952 : FAILURE in 4m 25s