Build failed. https://zuul.opendev.org/t/openstack/buildset/975c560dacbf4d4ba5350317decf11b1 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/484bf36150a04b32bb2e9065edd30671 : SUCCESS in 6m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5dab84a1db7949e086d100d320625cb9 : SUCCESS in 7m 29s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/3e3318aff3544f2a8f4a4b7ea37d42b1 : FAILURE in 7m 08s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/18042f2525c547cdad0cdd350f1ca9de : SUCCESS in 8m 07s