Build failed. https://zuul.opendev.org/t/openstack/buildset/4000d0c54ea04ed7bf3919e68f68d267 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/e34859333324438baf74f4bed8c284f0 : SUCCESS in 4m 47s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f69b0db2fa5942a6ab07d747a08d5a89 : FAILURE in 3m 32s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3b61428279914f07861da61594949d48 : SUCCESS in 3m 15s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f0b9b8d1ab1e4c90b04d666c7e7d48c0 : SUCCESS in 3m 31s