Build failed. https://zuul.opendev.org/t/openstack/buildset/8be59016b0ea4c5381a1488db45b48c0 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/6db746b2b21343e3ad3ce8aca6dc7d25 : SUCCESS in 2m 58s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/5947894a930747f38858a8740c6f4ac7 : SUCCESS in 3m 21s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a43dd214182d4f218d0cb6fac3d6c7a8 : FAILURE in 3m 44s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5a3198a616ca4667bc77bc47aa22c97d : FAILURE in 3m 15s