Build failed. https://zuul.opendev.org/t/openstack/buildset/0b1d82a52db745a2b1fa30d4623a7591 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/8b7fedaac54644df976a101a43a0d70e : FAILURE in 6m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/e11b983c613e4389bcda30ad32659e5f : SUCCESS in 6m 22s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a59c0ac4cf59416bbecc504f7e5add03 : SUCCESS in 6m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0c59afe6a8134bdeb801e286693edc34 : SUCCESS in 8m 28s