Looks like it's more than just that test:
http://logs.openstack.org/48/426448/2/gate/gate-tempest-dsvm-neutron-full-ubuntu-xenial/ecb3d0a/console.html#_2017-01-31_14_47_05_827109
Details: {u'code': 409, u'message': u"Cannot 'rebuild' instance b7279ba1-1847-4942-912c-d1f148f00ca3 while it is in vm_state building"}
Looks like it's more than just that test:
http:// logs.openstack. org/48/ 426448/ 2/gate/ gate-tempest- dsvm-neutron- full-ubuntu- xenial/ ecb3d0a/ console. html#_2017- 01-31_14_ 47_05_827109
Details: {u'code': 409, u'message': u"Cannot 'rebuild' instance b7279ba1- 1847-4942- 912c-d1f148f00c a3 while it is in vm_state building"}