Build failed. https://zuul.opendev.org/t/openstack/buildset/9e6cf6b3efb048c9871cb67b8d4c6c74 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b0a364ed414b40b5b9b8eec10ca74aa0 : SUCCESS in 3m 54s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/588e9e07d0c64d8fa1c450f74d18e380 : FAILURE in 2m 52s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/e6ff487a18f94ed284aebd10cdafcb73 : SUCCESS in 4m 48s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e52ef1cbafb3480eb521e323f2790a39 : SUCCESS in 4m 28s