Build failed. https://zuul.opendev.org/t/openstack/buildset/55802090a69948d9a520f952e5b9cbac - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/02ab3a7ec02442a8addd9640747e1210 : SUCCESS in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b07b0cc9428c4623b9a096221e4ebc2d : FAILURE in 3m 12s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/fef2b3f0887f4ca39ede684107dd79e6 : SUCCESS in 3m 22s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/09aeb7916b4c4615b7d668d25bdb32c3 : SUCCESS in 3m 38s