Build failed. https://zuul.opendev.org/t/openstack/buildset/50a3a5fdcd1a4bc8b35584aed41678f6 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/48ebcb1b356a4e698bcf77f2fd543dd8 : FAILURE in 6m 19s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/cb7f84872537473fbd7f8d9435115fb5 : SUCCESS in 6m 00s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/f5fbe4f272f14ff5a5b92ee60d6c88bb : SUCCESS in 7m 10s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/acfe5adb201b4fb988b872b4676d5569 : SUCCESS in 7m 38s