Build failed. https://zuul.opendev.org/t/openstack/buildset/499a7e75ee7642e99f9e2bd2486e7bfe - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8f9c7be43f494fb28cc05eb074114b0a : FAILURE in 6m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/daa1485828ec44aaa53c5a8047a82d32 : SUCCESS in 5m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6f3b719fd98945a3aa541d054272ec4c : SUCCESS in 5m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/b3627fa7353449b1b8efd774436ffc8f : SUCCESS in 6m 06s