Build failed. https://zuul.opendev.org/t/openstack/buildset/cfd899c1ba964696b9b67c69113ba617 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/846789cd962b4eb8bab8f1e8075ab506 : SUCCESS in 3m 46s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/7b7f7b0ab2824f6da2ab41b40f19f7bc : FAILURE in 4m 07s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a3539d7ba67046318e3d000bb2cd1b55 : SUCCESS in 3m 54s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/94587cab35ad47909afd455656cf8430 : SUCCESS in 3m 42s