Build failed. https://zuul.opendev.org/t/openstack/buildset/8a20e63437964cadbb1c260959c92819 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/4cfe8d77f0f940a7b0affc65e5801621 : SUCCESS in 2m 49s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/86157f32cee14180ab16df18219c72dd : SUCCESS in 3m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/1aa6696adfce4839bfe8ad5ba81bcb8a : FAILURE in 4m 07s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/98fb24da54464ff9927b5088d336b663 : FAILURE in 2m 44s