Build failed. https://zuul.opendev.org/t/openstack/buildset/651f4beed9ef49e18836c8fbd17d6508 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8bf5eb1fc3e04e70b01258a6757e2bb0 : SUCCESS in 3m 53s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/dc3918d4f93e4eb4b7988487ee3fcf05 : SUCCESS in 6m 11s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e055a51681dc46b8a0e68365656dd5d6 : SUCCESS in 6m 28s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/6915f5ffd8514b2f93ba82444bb7f18b : FAILURE in 6m 02s