Build failed. https://zuul.opendev.org/t/openstack/buildset/12aa416de7eb4c91bb942bbfb48d7032 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a3d2cdd1a0fd422da7397ab8a6ccb8c7 : FAILURE in 4m 25s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/6a2a745426f3430ea22e1bac6998425b : SUCCESS in 5m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ac3a86258b2c4f7b92986a53cb64e1b7 : SUCCESS in 4m 33s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e62ea4dfcf704e8c9ea8b4be44b34e57 : SUCCESS in 6m 06s