Build failed. https://zuul.opendev.org/t/openstack/buildset/b62833945b724594a215904c285ee4b5 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4144615767f74131bd521e68a95ca224 : SUCCESS in 3m 41s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/270eff9774464b468b916bea42a79808 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f9f981534c344241a37744bd4ca9f8f7 : SUCCESS in 3m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/1c80b81a0ecd422fa55cd70c8c0fe640 : SUCCESS in 4m 20s