Build failed. https://zuul.opendev.org/t/openstack/buildset/5872ef1d30994f3d8f4c045ff91c8114 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/c759f7761e324fd7b1ce71d0070157cf : SUCCESS in 4m 17s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/4b41a93e97a0419fb18f2786df75f06a : SUCCESS in 4m 09s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a47f941f53b54b9f90eedddb0217b077 : FAILURE in 3m 46s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/46022c83f54245bfbc9306bd3ff60e75 : FAILURE in 4m 35s