Build failed. https://zuul.opendev.org/t/openstack/buildset/128e33b5b53642daabfa9ae50d9d73ff - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/0e24ca6a2af740249858a5bb3b1ef721 : SUCCESS in 4m 42s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4f2092618c824a3b97a9d8cc78c5fc14 : SUCCESS in 5m 35s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/922dc0414f7a497eadf5d6cd3a1d9095 : SUCCESS in 4m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/29172a981a0847d68159f13254345a03 : FAILURE in 5m 17s