Build failed. https://zuul.opendev.org/t/openstack/buildset/6acfd20cc09a4cbbb744374efa0baf44 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/aa426280b93d438eba2d01b424e06b6b : SUCCESS in 3m 40s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8ba212969e7444eeb8215443aba9f1a0 : SUCCESS in 3m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/b2a264b17f714c749300d5df1b312845 : SUCCESS in 3m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/8ace61afd3c9405686147b2050754395 : FAILURE in 3m 05s