Build failed. https://zuul.opendev.org/t/openstack/buildset/1157596b361d4e6db6a7b81a2eca8ba8 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/01225026d879469094631a7670e01e4e : FAILURE in 3m 56s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/526ad3f054d04da8a9ba0ca385211ff4 : SUCCESS in 3m 05s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c3a3e5205c684d6180e73e899ae47692 : SUCCESS in 3m 32s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e52407755d2b4772ab17492194324aa7 : SUCCESS in 4m 02s