Build failed. https://zuul.opendev.org/t/openstack/buildset/f35805774bb74117b568264b7ebd1fc1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cec6a23e2090434c802621eb6db450bd : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1821925d55a94f3eb5db43ce0fa5a11f : FAILURE in 3m 40s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c7ee43796e6b48138648150cee05d2c5 : SUCCESS in 3m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5f9dd18e993946ce8c318cd48a5237a0 : SUCCESS in 3m 46s