Build failed. https://zuul.opendev.org/t/openstack/buildset/20fe957c8a7f495783563e4b59216c58 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c2e550e3d99246bc9893a04662de86da : SUCCESS in 4m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/80c8862dfdc34e6d92dc51dbcf4c84c3 : SUCCESS in 5m 10s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/2a706843ce394965943f9f758ab9af5c : FAILURE in 4m 00s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5559bb2a4d3b45bdab0c99e054563a10 : FAILURE in 4m 52s