Comment 1 for bug 1599329

As the traces show:

info: initramfs: up at 2.08
modprobe: module virtio_blk not found in modules.dep
modprobe: module virtio_net not found in modules.dep
info: copying initramfs to /dev/vda
info: initramfs loading root from /dev/vda
info: /etc/init.d/rc.sysinit: up at 4.50
info: container: none
Starting logging: OK
modprobe: module virtio_blk not found in modules.dep
modprobe: module virtio_net not found in modules.dep
WARN: /etc/rc3.d/S10-load-modules failed
Initializing random number generator... done.
Starting acpid: OK
cirros-ds 'local' up at 5.90
found datasource (configdrive, local)
Starting network...
udhcpc (v1.20.1) started
Sending discover...
Sending discover...

2016-07-05 22:37:40,487 28998 INFO [tempest.lib.common.rest_client] Request (TestNetworkBasicOps:_run_cleanups): 204 DELETE http://127.0.0.1:9696/v2.0/floatingips/fa755c01-9f6d-47cb-bfa5-27bba175624f 0.247s
2016-07-05 22:37:40,487 28998 DEBUG [tempest.lib.common.rest_client] Request - Headers: {'X-Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
        Body: None
    Response - Headers: {'x-openstack-request-id': 'req-947ba53e-e239-43f3-ace9-c068f224f8ee', 'content-length': '0', 'date': 'Tue, 05 Jul 2016 22:37:40 GMT', 'content-location': 'http://127.0.0.1:9696/v2.0/floatingips/fa755c01-9f6d-47cb-bfa5-27bba175624f', 'connection': 'close', 'status': '204'}
        Body:
2016-07-05 22:37:40,635 28998 INFO [tempest.lib.common.rest_client] Request (TestNetworkBasicOps:_run_cleanups): 204 DELETE http://127.0.0.1:8774/v2.1/servers/0747306e-8b5d-415e-8e70-faa19fe83c1c 0.146s
2016-07-05 22:37:40,635 28998 DEBUG [tempest.lib.common.rest_client] Request - Headers: {'X-Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
        Body: None
    Response - Headers: {'vary': 'X-OpenStack-Nova-API-Version', 'x-compute-request-id': 'req-48e30348-70c5-4c9e-8668-33768e43a89d', 'date': 'Tue, 05 Jul 2016 22:37:40 GMT', 'x-openstack-nova-api-version': '2.1', 'content-length': '0', 'connection': 'close', 'content-type': 'application/json', 'content-location': 'http://127.0.0.1:8774/v2.1/servers/0747306e-8b5d-415e-8e70-faa19fe83c1c', 'status': '204', 'openstack-api-version': 'compute 2.1'}
        Body:
2016-07-05 22:37:40,781 28998 INFO [tempest.lib.common.rest_client] Request (TestNetworkBasicOps:_run_cleanups): 200 GET http://127.0.0.1:8774/v2.1/servers/0747306e-8b5d-415e-8e70-faa19fe83c1c 0.145s
2016-07-05 22:37:40,781 28998 DEBUG [tempest.lib.common.rest_client] Request - Headers: {'X-Auth-Token': '<omitted>', 'Accept': 'application/json', 'Content-Type': 'application/json'}
        Body: None
    Response - Headers: {'vary': 'X-Ope

There's no lease received.