Build failed. https://zuul.opendev.org/t/openstack/buildset/e925657a9cdf42f8b3d7fd9732175f6c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/dc6a894af8aa4fbbb06f491ca220c9b7 : SUCCESS in 5m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/9afc9099c6f74008b00f918297b6ef67 : SUCCESS in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e74639a08cc04d1d9cf7cf880bf5d73e : FAILURE in 4m 42s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/985b893e8b5f46e9adeb3c1931df1741 : FAILURE in 3m 10s