Build failed. https://zuul.opendev.org/t/openstack/buildset/a0d7fc49699847aca1517724235fd666 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2a6a059d68474824a111e937ba245914 : SUCCESS in 4m 07s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/54cc28cdc39f4b1ca0725380529b44fc : SUCCESS in 2m 28s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/c0161eab64604874b9055820462e2b6e : SUCCESS in 3m 34s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/e9053c3884e647809acda8b5595ea329 : FAILURE in 2m 39s