Build failed. https://zuul.opendev.org/t/openstack/buildset/79649a03fb5049f7a378eb0d6e8010db - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/791708760cf84da384b169913840e4e1 : FAILURE in 5m 24s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1ee494a530f64f7aa222c91d800afc14 : SUCCESS in 5m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/d238a44eae1147869ffed70469177573 : SUCCESS in 4m 53s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/cdec38c2373d4703aac49e9a4cdd0a35 : SUCCESS in 5m 39s