Build failed. https://zuul.opendev.org/t/openstack/buildset/3f708746c0a34eb59fe79d2b219eac1f - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cd63db1a6d8741529cb32a1d8606b501 : FAILURE in 5m 35s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/8dc8e629bf45412390d99a8a769a92f2 : SUCCESS in 4m 44s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0adca4a10e2c4c688e5476cd97422160 : SUCCESS in 4m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/a8f0da83106a44d381e61b91fad772c0 : SUCCESS in 5m 23s