Build failed. - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/edffa7978ccc40028468e9409d745e3b : SUCCESS in 5m 02s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/1841fb13fc0144259099ec35783cdd8f : SUCCESS in 8m 27s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/ecf882850f52496e894ac2bfde6faa20 : SUCCESS in 7m 35s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/2263b27d940346fdaa399ad544a24680 : FAILURE in 4m 23s