Build failed. https://zuul.opendev.org/t/openstack/buildset/c28bf4c6e66f4438b0c434f6a0bc774f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c114bc4d69c247ca815ba8cd721af629 : FAILURE in 3m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5f9ee22851ac44ae8540a1e767548881 : SUCCESS in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/19914ed55bd14b45bf59c0a6c875c6a5 : SUCCESS in 4m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/ffdbd6d61e904262a077c2852efe532f : SUCCESS in 4m 16s