Packer-Build Crash with Packer 2.4

gistfile1.txt

```PACKER_LOG=1 ./script/vbox.sh -debug -var headless=true  template/ubuntu/bionic/base.json | tee out
2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 Using internal plugin for parallels-iso
2018/06/01 09:07:43 Using internal plugin for lxc
2018/06/01 09:07:43 Using internal plugin for ncloud
2018/06/01 09:07:43 Using internal plugin for oracle-oci
2018/06/01 09:07:43 Using internal plugin for profitbricks
2018/06/01 09:07:43 Using internal plugin for amazon-instance
2018/06/01 09:07:43 Using internal plugin for googlecompute
2018/06/01 09:07:43 Using internal plugin for null
2018/06/01 09:07:43 Using internal plugin for amazon-ebs
2018/06/01 09:07:43 Using internal plugin for amazon-ebsvolume
2018/06/01 09:07:43 Using internal plugin for cloudstack
2018/06/01 09:07:43 Using internal plugin for lxd
2018/06/01 09:07:43 Using internal plugin for triton
2018/06/01 09:07:43 Using internal plugin for oneandone
2018/06/01 09:07:43 Using internal plugin for parallels-pvm
2018/06/01 09:07:43 Using internal plugin for qemu
2018/06/01 09:07:43 Using internal plugin for vmware-vmx
2018/06/01 09:07:43 Using internal plugin for amazon-ebssurrogate
2018/06/01 09:07:43 Using internal plugin for docker
2018/06/01 09:07:43 Using internal plugin for file
2018/06/01 09:07:43 Using internal plugin for oracle-classic
2018/06/01 09:07:43 Using internal plugin for virtualbox-ovf
2018/06/01 09:07:43 Using internal plugin for amazon-chroot
2018/06/01 09:07:43 Using internal plugin for hyperv-vmcx
2018/06/01 09:07:43 Using internal plugin for virtualbox-iso
2018/06/01 09:07:43 Using internal plugin for vmware-iso
2018/06/01 09:07:43 Using internal plugin for alicloud-ecs
2018/06/01 09:07:43 Using internal plugin for azure-arm
2018/06/01 09:07:43 Using internal plugin for digitalocean
2018/06/01 09:07:43 Using internal plugin for hyperv-iso
2018/06/01 09:07:43 Using internal plugin for openstack
2018/06/01 09:07:43 Using internal plugin for scaleway
2018/06/01 09:07:43 Using internal plugin for ansible-local
2018/06/01 09:07:43 Using internal plugin for puppet-masterless
2018/06/01 09:07:43 Using internal plugin for shell-local
2018/06/01 09:07:43 Using internal plugin for ansible
2018/06/01 09:07:43 Using internal plugin for chef-solo
2018/06/01 09:07:43 Using internal plugin for powershell
2018/06/01 09:07:43 Using internal plugin for puppet-server
2018/06/01 09:07:43 Using internal plugin for salt-masterless
2018/06/01 09:07:43 Using internal plugin for windows-shell
2018/06/01 09:07:43 Using internal plugin for shell
2018/06/01 09:07:43 Using internal plugin for windows-restart
2018/06/01 09:07:43 Using internal plugin for chef-client
2018/06/01 09:07:43 Using internal plugin for converge
2018/06/01 09:07:43 Using internal plugin for file
2018/06/01 09:07:43 Using internal plugin for googlecompute-export
2018/06/01 09:07:43 Using internal plugin for vagrant
2018/06/01 09:07:43 Using internal plugin for vagrant-cloud
2018/06/01 09:07:43 Using internal plugin for vsphere-template
2018/06/01 09:07:43 Using internal plugin for amazon-import
2018/06/01 09:07:43 Using internal plugin for docker-import
2018/06/01 09:07:43 Using internal plugin for manifest
2018/06/01 09:07:43 Using internal plugin for shell-local
2018/06/01 09:07:43 Using internal plugin for vsphere
2018/06/01 09:07:43 Using internal plugin for alicloud-import
2018/06/01 09:07:43 Using internal plugin for compress
2018/06/01 09:07:43 Using internal plugin for docker-push
2018/06/01 09:07:43 Using internal plugin for artifice
2018/06/01 09:07:43 Using internal plugin for checksum
2018/06/01 09:07:43 Using internal plugin for docker-tag
2018/06/01 09:07:43 Using internal plugin for atlas
2018/06/01 09:07:43 Using internal plugin for docker-save
2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[googlecompute:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-googlecompute vmware-iso:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-vmware-iso azure-arm:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-azure-arm hyperv-iso:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-hyperv-iso openstack:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-openstack amazon-ebsvolume:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-amazon-ebsvolume file:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-file amazon-chroot:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-amazon-chroot virtualbox-iso:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-virtualbox-iso lxc:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-lxc profitbricks:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-profitbricks amazon-instance:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-amazon-instance lxd:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-lxd oneandone:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-oneandone hyperv-vmcx:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-hyperv-vmcx scaleway:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-scaleway parallels-iso:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-parallels-iso null:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-null parallels-pvm:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-parallels-pvm amazon-ebssurrogate:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-amazon-ebssurrogate virtualbox-ovf:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-virtualbox-ovf alicloud-ecs:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-alicloud-ecs ncloud:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-ncloud docker:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-docker cloudstack:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-cloudstack digitalocean:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-digitalocean amazon-ebs:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-amazon-ebs qemu:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-qemu oracle-oci:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-oracle-oci triton:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-triton vmware-vmx:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-vmware-vmx oracle-classic:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-builder-oracle-classic] PostProcessors:map[checksum:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-checksum docker-tag:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-docker-tag docker-save:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-docker-save googlecompute-export:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-googlecompute-export docker-import:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-docker-import shell-local:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-shell-local vsphere:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-vsphere compress:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-compress docker-push:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-docker-push atlas:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-atlas vagrant:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-vagrant vagrant-cloud:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-vagrant-cloud vsphere-template:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-vsphere-template manifest:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-manifest amazon-import:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-amazon-import alicloud-import:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-alicloud-import artifice:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-post-processor-artifice] Provisioners:map[chef-client:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-chef-client windows-shell:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-windows-shell windows-restart:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-windows-restart powershell:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-powershell shell-local:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-shell-local chef-solo:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-chef-solo ansible:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-ansible puppet-server:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-puppet-server salt-masterless:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-salt-masterless converge:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-converge file:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-file ansible-local:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-ansible-local puppet-masterless:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-puppet-masterless shell:/usr/bin/packer-PACKERSPACE-plugin-PACKERSPACE-packer-provisioner-shell]}
2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 Loading builder: virtualbox-iso
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-builder-virtualbox-iso"}
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-builder-virtualbox-iso"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin946622539
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 Loading provisioner: shell
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-provisioner-shell"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-provisioner-shell"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin309396529
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 Loading provisioner: shell
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-provisioner-shell"}
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-provisioner-shell"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin192909891
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 Loading provisioner: shell
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-provisioner-shell"}
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-provisioner-shell"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin565845281
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 Loading provisioner: shell
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-provisioner-shell"}
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-provisioner-shell"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin528305486
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 Loading post-processor: vagrant
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-post-processor-vagrant"}
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-post-processor-vagrant"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin508842703
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 Loading post-processor: shell-local
2018/06/01 09:07:43 Plugin could not be found. Checking same directory as executable.
2018/06/01 09:07:43 Current exe path: /usr/bin/packer
2018/06/01 09:07:43 Creating plugin client for path: /usr/bin/packer
2018/06/01 09:07:43 Starting plugin: /usr/bin/packer []string{"/usr/bin/packer", "plugin", "packer-post-processor-shell-local"}
2018/06/01 09:07:43 Waiting for RPC address for: /usr/bin/packer
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [INFO] Packer version: 1.2.4
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer Target OS/Arch: linux amd64
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Built with Go Version: go1.10.1
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Attempting to open config file: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 [WARN] Config file doesn't exist: /home/FUZZBUTT/snesbitt/.packerconfig
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Packer config: &{DisableCheckpoint:false DisableCheckpointSignature:false PluginMinPort:10000 PluginMaxPort:25000 Builders:map[] PostProcessors:map[] Provisioners:map[]}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Setting cache directory: /home/FUZZBUTT/snesbitt/projects/ContainerImages/vms/packer_cache
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Detected home directory from env var: /home/FUZZBUTT/snesbitt
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 args: []string{"packer-post-processor-shell-local"}
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin minimum port: 10000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin maximum port: 25000
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Plugin address: unix /tmp/packer-plugin605722608
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Waiting for connection...
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Serving a plugin connection...
2018/06/01 09:07:43 ui: Debug mode enabled. Builds will not be parallelized.
2018/06/01 09:07:43 ui: vbox output will be in this color.
2018/06/01 09:07:43 ui: 
2018/06/01 09:07:43 Build debug mode: true
2018/06/01 09:07:43 Force build: false
2018/06/01 09:07:43 On error: 
2018/06/01 09:07:43 Preparing build: vbox
Debug mode enabled. Builds will not be parallelized.
vbox output will be in this color.

2018/06/01 09:07:43 Debug enabled, so waiting for build to finish: vbox
2018/06/01 09:07:43 Starting build run: vbox
2018/06/01 09:07:43 Running builder: virtualbox-iso
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 VBoxManage path: /usr/bin/VBoxManage
2018/06/01 09:07:43 packer: 2018/06/01 09:07:43 Not downloading guest additions since it is disabled.
2018/06/01 09:07:43 ui: ask: ==> vbox: Pausing after run of step 'StepDownloadGuestAdditions'. Press enter to continue.
==> vbox: Pausing after run of step 'StepDownloadGuestAdditions'. Press enter to continue. 
2018/06/01 09:07:45 ui: ==> vbox: Downloading or copying ISO
==> vbox: Downloading or copying ISO
2018/06/01 09:07:45 ui:     vbox: Downloading or copying: http://myserver:8080/ubuntu/ubuntu-18.04-server-amd64.iso
2018/06/01 09:07:45 packer: 2018/06/01 09:07:45 Parsed URL: &url.URL{Scheme:"http", Opaque:"", User:(*url.Userinfo)(nil), Host:"myserver:8080", Path:"/ubuntu/ubuntu-18.04-server-amd64.iso", RawPath:"", ForceQuery:false, RawQuery:"", Fragment:""}
    vbox: Downloading or copying: http://myserver:8080/ubuntu/ubuntu-18.04-server-amd64.iso
2018/06/01 09:07:45 packer: 2018/06/01 09:07:45 [DEBUG] Downloading: http://myserver:8080/ubuntu/ubuntu-18.04-server-amd64.iso
2018/06/01 09:07:45 packer: 2018/06/01 09:07:45 Starting download over HTTP: http://myserver:8080/ubuntu/ubuntu-18.04-server-amd64.iso
2018/06/01 09:07:45 packer: Build 'vbox' errored: unexpected EOF

==> Some builds didn't complete successfully and had errors:
--> vbox: unexpected EOF

==> Builds finished but no artifacts were created.
panic: runtime error: invalid memory address or nil pointer dereference
2018/06/01 09:07:45 packer: [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x8ff60e]
2018/06/01 09:07:45 packer: 
2018/06/01 09:07:45 packer: goroutine 379 [running]:
2018/06/01 09:07:45 packer: github.com/hashicorp/packer/common.(*HTTPDownloader).Download(0xc420398640, 0xc420198108, 0xc4201a0600, 0x1, 0x1)
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/download.go:294 +0x23e
2018/06/01 09:07:45 packer: github.com/hashicorp/packer/common.(*DownloadClient).Get(0xc420108d20, 0x0, 0x2, 0xffffffffffffffff, 0xc4202a5cd8)
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/download.go:173 +0x477
2018/06/01 09:07:45 packer: github.com/hashicorp/packer/common.(*StepDownload).download.func1(0xc420108d20, 0xc420021d00, 0xc4203849c0)
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/step_download.go:149 +0x2f
2018/06/01 09:07:45 packer: created by github.com/hashicorp/packer/common.(*StepDownload).download
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/step_download.go:147 +0x174
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 ui error: Build 'vbox' errored: unexpected EOF
2018/06/01 09:07:45 Waiting on builds to complete...
2018/06/01 09:07:45 Builds completed. Waiting on interrupt barrier...
2018/06/01 09:07:45 machine readable: error-count []string{"1"}
2018/06/01 09:07:45 ui error: 
==> Some builds didn't complete successfully and had errors:
2018/06/01 09:07:45 machine readable: vbox,error []string{"unexpected EOF"}
2018/06/01 09:07:45 ui error: --> vbox: unexpected EOF
2018/06/01 09:07:45 ui: 
==> Builds finished but no artifacts were created.
2018/06/01 09:07:45 waiting for all plugin processes to complete...
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
panic: runtime error: invalid memory address or nil pointer dereference
2018/06/01 09:07:45 packer: [signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x8ff60e]
2018/06/01 09:07:45 packer: 
2018/06/01 09:07:45 packer: goroutine 379 [running]:
2018/06/01 09:07:45 packer: github.com/hashicorp/packer/common.(*HTTPDownloader).Download(0xc420398640, 0xc420198108, 0xc4201a0600, 0x1, 0x1)
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/download.go:294 +0x23e
2018/06/01 09:07:45 packer: github.com/hashicorp/packer/common.(*DownloadClient).Get(0xc420108d20, 0x0, 0x2, 0xffffffffffffffff, 0xc4202a5cd8)
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/download.go:173 +0x477
2018/06/01 09:07:45 packer: github.com/hashicorp/packer/common.(*StepDownload).download.func1(0xc420108d20, 0xc420021d00, 0xc4203849c0)
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/step_download.go:149 +0x2f
2018/06/01 09:07:45 packer: created by github.com/hashicorp/packer/common.(*StepDownload).download
2018/06/01 09:07:45 packer:     /Users/mmarsh/go/src/github.com/hashicorp/packer/common/step_download.go:147 +0x174
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 ui error: Build 'vbox' errored: unexpected EOF
2018/06/01 09:07:45 Waiting on builds to complete...
2018/06/01 09:07:45 Builds completed. Waiting on interrupt barrier...
2018/06/01 09:07:45 machine readable: error-count []string{"1"}
2018/06/01 09:07:45 ui error: 
==> Some builds didn't complete successfully and had errors:
2018/06/01 09:07:45 machine readable: vbox,error []string{"unexpected EOF"}
2018/06/01 09:07:45 ui error: --> vbox: unexpected EOF
2018/06/01 09:07:45 ui: 
==> Builds finished but no artifacts were created.
2018/06/01 09:07:45 waiting for all plugin processes to complete...
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited
2018/06/01 09:07:45 /usr/bin/packer: plugin process exited



!!!!!!!!!!!!!!!!!!!!!!!!!!! PACKER CRASH !!!!!!!!!!!!!!!!!!!!!!!!!!!!

Packer crashed! This is always indicative of a bug within Packer.
A crash log has been placed at "crash.log" relative to your current
working directory. It would be immensely helpful if you could please
report the crash with Packer[1] so that we can fix this.

[1]: https://github.com/hashicorp/packer/issues

!!!!!!!!!!!!!!!!!!!!!!!!!!! PACKER CRASH !!!!!!!!!!!!!!!!!!!!!!!!!!!!
```