ERROR out instance if unrescue fails.
ERROR out instance if unrescue fails.

Fixes bug 919444

Change-Id: I8545e9c4f9fb3e7dbe95dddb01ada30d3f1402fa

luogangyi/bcec-nova,MountainWei/nova,jeffrey4l/nova,mmnelemane/nova,rrader/nova-docker-plugin,tudorvio/nova,sebrandon1/nova,eneabio/nova,CiscoSystems/nova,sacharya/nova,russellb/nova,hanlind/nova,rajalokan/nova,SUSE-Cloud/nova,JianyuWang/nova,usc-isi/extra-specs,eharney/nova,varunarya10/nova_test_latest,OpenAcademy-OpenStack/nova-scheduler,mikalstill/nova,blueboxgroup/nova,psiwczak/openstack,bigswitch/nova,scripnichenko/nova,shootstar/novatest,gooddata/openstack-nova,eneabio/nova,saleemjaveds/https-github.com-openstack-nova,raildo/nova,zaina/nova,akash1808/nova,vmturbo/nova,paulmathews/nova,citrix-openstack-build/nova,petrutlucian94/nova,alexandrucoman/vbox-nova-driver,qwefi/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,virtualopensystems/nova,maoy/zknova,gooddata/openstack-nova,cloudbase/nova,Yuriy-Leonov/nova,OpenAcademy-OpenStack/nova-scheduler,zhimin711/nova,petrutlucian94/nova,ruslanloman/nova,rahulunair/nova,kimjaejoong/nova,fnordahl/nova,eayunstack/nova,mahak/nova,zzicewind/nova,jianghuaw/nova,shail2810/nova,usc-isi/nova,Triv90/Nova,mikalstill/nova,sridevikoushik31/openstack,bigswitch/nova,houshengbo/nova_vmware_compute_driver,virtualopensystems/nova,CCI-MOC/nova,bgxavier/nova,openstack/nova,zhimin711/nova,usc-isi/nova,sridevikoushik31/nova,cernops/nova,tealover/nova,mandeepdhami/nova,josephsuh/extra-specs,redhat-openstack/nova,CEG-FYP-OpenStack/scheduler,angdraug/nova,rickerc/nova_audit,luogangyi/bcec-nova,dstroppa/openstack-smartos-nova-grizzly,KarimAllah/nova,bclau/nova,watonyweng/nova,cloudbau/nova,maoy/zknova,dims/nova,tanglei528/nova,russellb/nova,gooddata/openstack-nova,eonpatapon/nova,DirectXMan12/nova-hacking,JianyuWang/nova,saleemjaveds/https-github.com-openstack-nova,ewindisch/nova,citrix-openstack-build/nova,sebrandon1/nova,tianweizhang/nova,fajoy/nova,adelina-t/nova,tudorvio/nova,imsplitbit/nova,leilihh/nova,jianghuaw/nova,badock/nova,watonyweng/nova,felixma/nova,russellb/nova,houshengbo/nova_vmware_compute_driver,cernops/nova,JioCloud/nova,projectcalico/calico-nova,mahak/nova,maheshp/novatest,qwefi/nova,dawnpower/nova,psiwczak/openstack,thomasem/nova,eharney/nova,noironetworks/nova,leilihh/nova,openstack/nova,sridevikoushik31/nova,NeCTAR-RC/nova,rahulunair/nova,berrange/nova,alvarolopez/nova,cloudbase/nova-virtualbox,klmitch/nova,eonpatapon/nova,edulramirez/nova,double12gzh/nova,apporc/nova,KarimAllah/nova,fnordahl/nova,apporc/nova,gspilio/nova,vladikr/nova_drafts,Yusuke1987/openstack_template,belmiromoreira/nova,CEG-FYP-OpenStack/scheduler,maelnor/nova,DirectXMan12/nova-hacking,CloudServer/nova,usc-isi/extra-specs,JioCloud/nova,imsplitbit/nova,mandeepdhami/nova,KarimAllah/nova,vmturbo/nova,alvarolopez/nova,double12gzh/nova,ewindisch/nova,barnsnake351/nova,nikesh-mahalka/nova,varunarya10/nova_test_latest,usc-isi/nova,sridevikoushik31/nova,orbitfp7/nova,takeshineshiro/nova,iuliat/nova,jeffrey4l/nova,Yuriy-Leonov/nova,nikesh-mahalka/nova,sacharya/nova,vmturbo/nova,dstroppa/openstack-smartos-nova-grizzly,Tehsmash/nova,vladikr/nova_drafts,rajalokan/nova,silenceli/nova,yatinkumbhare/openstack-nova,whitepages/nova,openstack/nova,shahar-stratoscale/nova,eayunstack/nova,NoBodyCam/TftpPxeBootBareMetal,cloudbase/nova,maoy/zknova,adelina-t/nova,eneabio/nova,noironetworks/nova,redhat-openstack/nova,cloudbau/nova,tangfeixiong/nova,viggates/nova,belmiromoreira/nova,yrobla/nova,affo/nova,aristanetworks/arista-ovs-nova,Juniper/nova,alexandrucoman/vbox-nova-driver,sridevikoushik31/openstack,akash1808/nova_test_latest,savi-dev/nova,Juniper/nova,Yusuke1987/openstack_template,barnsnake351/nova,zaina/nova,klmitch/nova,usc-isi/extra-specs,sridevikoushik31/openstack,TwinkleChawla/nova,alaski/nova,CloudServer/nova,paulmathews/nova,cyx1231st/nova,Juniper/nova,yrobla/nova,joker946/nova,rajalokan/nova,cloudbase/nova,mgagne/nova,zzicewind/nova,isyippee/nova,NewpTone/stacklab-nova,CCI-MOC/nova,NewpTone/stacklab-nova,tealover/nova,BeyondTheClouds/nova,j-carpentier/nova,jianghuaw/nova,akash1808/nova_test_latest,phenoxim/nova,angdraug/nova,cernops/nova,projectcalico/calico-nova,JioCloud/nova_test_latest,fajoy/nova,NeCTAR-RC/nova,DirectXMan12/nova-hacking,kimjaejoong/nova,paulmathews/nova,plumgrid/plumgrid-nova,shahar-stratoscale/nova,alaski/nova,TieWei/nova,aristanetworks/arista-ovs-nova,viggates/nova,blueboxgroup/nova,iuliat/nova,phenoxim/nova,ted-gould/nova,Brocade-OpenSource/OpenStack-DNRM-Nova,isyippee/nova,Metaswitch/calico-nova,sileht/deb-openstack-nova,bclau/nova,spring-week-topos/nova-week,ntt-sic/nova,devendermishrajio/nova_test_latest,savi-dev/nova,orbitfp7/nova,joker946/nova,bgxavier/nova,dstroppa/openstack-smartos-nova-grizzly,LoHChina/nova,NoBodyCam/TftpPxeBootBareMetal,sebrandon1/nova,JioCloud/nova_test_latest,MountainWei/nova,aristanetworks/arista-ovs-nova,shootstar/novatest,Stavitsky/nova,mahak/nova,TieWei/nova,Triv90/Nova,devendermishrajio/nova,yosshy/nova,vmturbo/nova,TwinkleChawla/nova,sridevikoushik31/nova,rahulunair/nova,ntt-sic/nova,scripnichenko/nova,Triv90/Nova,tianweizhang/nova,BeyondTheClouds/nova,plumgrid/plumgrid-nova,raildo/nova,mikalstill/nova,psiwczak/openstack,yatinkumbhare/openstack-nova,klmitch/nova,NewpTone/stacklab-nova,maheshp/novatest,takeshineshiro/nova,Francis-Liu/animated-broccoli,LoHChina/nova,sileht/deb-openstack-nova,affo/nova,Tehsmash/nova,rajalokan/nova,rickerc/nova_audit,devoid/nova,j-carpentier/nova,NoBodyCam/TftpPxeBootBareMetal,tanglei528/nova,sileht/deb-openstack-nova,maheshp/novatest,dims/nova,spring-week-topos/nova-week,hanlind/nova,petrutlucian94/nova_dev,ted-gould/nova,BeyondTheClouds/nova,Francis-Liu/animated-broccoli,maelnor/nova,yrobla/nova,jianghuaw/nova,tangfeixiong/nova,hanlind/nova,CiscoSystems/nova,berrange/nova,mmnelemane/nova,mgagne/nova,fajoy/nova,savi-dev/nova,josephsuh/extra-specs,dawnpower/nova,thomasem/nova,gspilio/nova,gspilio/nova,Stavitsky/nova,devendermishrajio/nova_test_latest,Juniper/nova,edulramirez/nova,josephsuh/extra-specs,whitepages/nova,shail2810/nova,rrader/nova-docker-plugin,cloudbase/nova-virtualbox,felixma/nova,yosshy/nova,petrutlucian94/nova_dev,cyx1231st/nova,Metaswitch/calico-nova,ruslanloman/nova,leilihh/novaha,houshengbo/nova_vmware_compute_driver,devoid/nova,SUSE-Cloud/nova,akash1808/nova,devendermishrajio/nova,badock/nova,klmitch/nova,gooddata/openstack-nova,silenceli/nova,leilihh/novaha