Packer waits eternally on creating temporary keypair

packer debug output

packer build example-pack.json
2014/06/04 16:42:36 Packer Version: 0.6.0  12e28f257f66299e3bb13a053bf06ccd236e7efd
2014/06/04 16:42:36 Packer Target OS/Arch: darwin amd64
2014/06/04 16:42:36 Built with Go Version: go1.2
2014/06/04 16:42:36 Detected home directory from env var: /Users/redact
2014/06/04 16:42:36 Attempting to open config file: /Users/redact/.packerconfig
2014/06/04 16:42:36 File doesn't exist, but doesn't need to. Ignoring.
2014/06/04 16:42:36 Packer config: &{PluginMinPort:0 PluginMaxPort:0 Builders:map[docker:packer-builder-docker openstack:packer-builder-openstack virtualbox-iso:packer-builder-virtualbox-iso googlecompute:packer-builder-googlecompute qemu:packer-builder-qemu vmware-vmx:packer-builder-vmware-vmx parallels-iso:packer-builder-parallels-iso null:packer-builder-null amazon-ebs:packer-builder-amazon-ebs amazon-chroot:packer-builder-amazon-chroot virtualbox-ovf:packer-builder-virtualbox-ovf vmware-iso:packer-builder-vmware-iso amazon-instance:packer-builder-amazon-instance digitalocean:packer-builder-digitalocean parallels-pvm:packer-builder-parallels-pvm] Commands:map[build:packer-command-build fix:packer-command-fix inspect:packer-command-inspect validate:packer-command-validate] PostProcessors:map[vagrant:packer-post-processor-vagrant vsphere:packer-post-processor-vsphere docker-push:packer-post-processor-docker-push docker-import:packer-post-processor-docker-import] Provisioners:map[ansible-local:packer-provisioner-ansible-local chef-client:packer-provisioner-chef-client chef-solo:packer-provisioner-chef-solo file:packer-provisioner-file puppet-masterless:packer-provisioner-puppet-masterless puppet-server:packer-provisioner-puppet-server shell:packer-provisioner-shell salt-masterless:packer-provisioner-salt-masterless]}
2014/06/04 16:42:36 Setting cache directory: /Users/redact/code/initialstate/log-assimilator/packer_cache
2014/06/04 16:42:36 Environment.Cli: []string{"build", "example-pack.json"}
2014/06/04 16:42:36 command + args: []string{"build", "example-pack.json"}
2014/06/04 16:42:36 Loading command: build
2014/06/04 16:42:36 Creating plugin client for path: /Users/redact/packer/packer-command-build
2014/06/04 16:42:36 Starting plugin: /Users/redact/packer/packer-command-build []string{"/Users/redact/packer/packer-command-build"}
2014/06/04 16:42:36 Waiting for RPC address for: /Users/redact/packer/packer-command-build
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Plugin build against Packer '12e28f257f66299e3bb13a053bf06ccd236e7efd'
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Plugin minimum port: 10000
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Plugin maximum port: 25000
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Plugin address: unix /var/folders/hw/1pvc02m915v0y5dq8hm907g40000gn/T/packer-plugin213854254
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Waiting for connection...
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Serving a plugin connection...
2014/06/04 16:42:36 Executing command: build
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Reading template: example-pack.json
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Creating build: amazon-ebs
2014/06/04 16:42:36 Loading builder: amazon-ebs
2014/06/04 16:42:36 Creating plugin client for path: /Users/redact/packer/packer-builder-amazon-ebs
2014/06/04 16:42:36 Starting plugin: /Users/redact/packer/packer-builder-amazon-ebs []string{"/Users/redact/packer/packer-builder-amazon-ebs"}
2014/06/04 16:42:36 Waiting for RPC address for: /Users/redact/packer/packer-builder-amazon-ebs
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Plugin build against Packer '12e28f257f66299e3bb13a053bf06ccd236e7efd'
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Plugin minimum port: 10000
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Plugin maximum port: 25000
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Plugin address: unix /var/folders/hw/1pvc02m915v0y5dq8hm907g40000gn/T/packer-plugin495369196
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Waiting for connection...
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Serving a plugin connection...
amazon-ebs output will be in this color.
2014/06/04 16:42:36 ui: amazon-ebs output will be in this color.

2014/06/04 16:42:36 ui:
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Build debug mode: false
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Force build: false
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Preparing build: amazon-ebs
2014/06/04 16:42:36 /Users/redact/packer/packer-builder-amazon-ebs: 2014/06/04 16:42:36 Config: {PackerConfig:{PackerBuildName:amazon-ebs PackerBuilderType:amazon-ebs PackerDebug:false PackerForce:false PackerUserVars:map[]} AccessConfig:{AccessKey:<Filtered> SecretKey:<Filtered> RawRegion:us-east-1} AMIConfig:{AMIName:packer-quick-start 1401918156 AMIDescription: AMIVirtType: AMIUsers:[] AMIGroups:[] AMIProductCodes:[] AMIRegions:[] AMITags:map[]} BlockDevices:{AMIMappings:[] LaunchMappings:[]} RunConfig:{AssociatePublicIpAddress:false AvailabilityZone: IamInstanceProfile: InstanceType:t1.micro RunTags:map[] SourceAmi:ami-de0d9eb7 RawSSHTimeout:5m SSHUsername:ubuntu SSHPrivateKeyFile: SSHPort:22 SecurityGroupId: SecurityGroupIds:[] SubnetId: TemporaryKeyPairName:packer 538f92cc-58fd-0863-40b3-3bcc9244dec9 UserData: UserDataFile: VpcId: sshTimeout:300000000000} tpl:0xc2100ed7a0}
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Waiting on builds to complete...
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Starting build run: amazon-ebs
2014/06/04 16:42:36 /Users/redact/packer/packer-command-build: 2014/06/04 16:42:36 Running builder: amazon-ebs
==> amazon-ebs: Creating temporary keypair: packer 538f92cc-58fd-0863-40b3-3bcc9244dec9
2014/06/04 16:42:36 ui: ==> amazon-ebs: Creating temporary keypair: packer 538f92cc-58fd-0863-40b3-3bcc9244dec9