Build failed. https://zuul.opendev.org/t/openstack/buildset/f96a7d8ab336448ea038449e250314f9 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/da3b2fa4622d4adc956c36cbd14a43c2 : SUCCESS in 3m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4fcf3b1f092e4a8083f49a38c94fc058 : FAILURE in 7m 36s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/00f35d0a95b0442596f1a5ba225fda5c : SUCCESS in 4m 36s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/f3e7d15d3b1d4dc9b3eb97520444f4bf : SUCCESS in 5m 01s