Build failed. https://zuul.opendev.org/t/openstack/buildset/a13604687f754aedb92aec5297e7268d - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/02b9d1c9860e47fcb54a4484e1b83a12 : SUCCESS in 4m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/2146ae247ff545c0918ac902216d57e6 : FAILURE in 3m 58s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/7a4d63a84b484ddca1a49cae515d1790 : SUCCESS in 4m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/36be7e65edd0450f928b1e097cd21b1a : SUCCESS in 4m 56s