Build failed. https://zuul.opendev.org/t/openstack/buildset/1684e943886a4d43936c7da546b87c66 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c2f30f1da240440faeb014d648dfb836 : FAILURE in 7m 50s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/47770821e8c544f894e8af4fddbc640f : SUCCESS in 5m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/9b02ed0dbae1495babb7308805bae310 : SUCCESS in 6m 03s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0311b9a500074454a1abd467bfd290d4 : SUCCESS in 6m 11s