Build failed. https://zuul.opendev.org/t/openstack/buildset/e2ce2f4c854c405ea4e89cf37a0b50b7 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/2ff05b912b334da4a78d1d9f30fac1e2 : SUCCESS in 3m 14s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/08c4458cea7241dfb0b5451a6f5b2324 : FAILURE in 2m 54s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/6eb58a99187841f99ca58616f08460ba : SUCCESS in 2m 47s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/707221c310f94b50980c8583cd01d836 : FAILURE in 2m 57s