Build failed. https://zuul.opendev.org/t/openstack/buildset/0db696a0f4664059bc1835297fd92520 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/b1e2fcc6be444f989d0e1adbd4f48f12 : SUCCESS in 4m 23s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f966356d803c43928a429bd27b437625 : SUCCESS in 4m 15s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/692654ac5266436a94967268b735f49e : FAILURE in 3m 59s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/5b340254d7e14b2397df713ef03639d9 : FAILURE in 4m 22s