Build failed. https://zuul.opendev.org/t/openstack/buildset/145b02ddc8e44731ae2fa643b88b0a9c - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/37368bc008c447239a2c42a612cedfea : SUCCESS in 4m 22s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/b1a22e4f2e134f9dbaa9cefa16773a18 : SUCCESS in 4m 50s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/0e02a1e5905b47ecad7fb9f9118f0a69 : SUCCESS in 4m 37s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/0902d5e8f5db40fa84474693d1444483 : FAILURE in 4m 33s