Build failed. https://zuul.opendev.org/t/openstack/buildset/d4d3a8038cfd4ab4b7e7d31c2bfa3b3e - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/49c65f9649bd41cca8c616a4ff8885aa : SUCCESS in 4m 45s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/a256d4084aba4544a2461a280bcc8866 : FAILURE in 3m 26s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0d96ee438fbf4fbbbd460f0a42a38021 : SUCCESS in 3m 16s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a7af104bbbbe4fe6a68f4d3b0d2fb6c6 : SUCCESS in 3m 40s