Build failed. https://zuul.opendev.org/t/openstack/buildset/3cc995a89940415a96fac761e989fca2 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/a9f3ce0523c84a7aa27e2bd9ec86b2af : FAILURE in 3m 31s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/853e686939b24105a001c604ad6dc27f : SUCCESS in 3m 17s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f1d9e7ba574d47cdb86e5e19d9a73c70 : SUCCESS in 2m 57s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/eb1469ca0a764434a8e4b943694ed621 : SUCCESS in 3m 32s