Build failed. https://zuul.opendev.org/t/openstack/buildset/2f3f86cb128f4aba96b5ab880ad3b063 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/096696990b3c40caa7d2e78211d1a638 : SUCCESS in 3m 36s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/298be9100f6b48b4b04ffdcfcfb34d2c : FAILURE in 3m 13s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/5abc4a6024f44dc1b0cee5f1bc8cb2f3 : SUCCESS in 2m 27s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/57310ad9ecb74e1bbc64adc5c82010e6 : FAILURE in 2m 53s