/snap/bin/lxc launch ubuntu:16.04 u1 --debug
DBUG[10-21|00:40:01] Connecting to a local LXD over a Unix socket 
DBUG[10-21|00:40:01] Sending request to LXD                   etag= method=GET url=http://unix.socket/1.0
DBUG[10-21|00:40:01] Got response struct from LXD 
DBUG[10-21|00:40:01] 
	{
		"config": {
			"core.https_address": "[::]"
		},
		"api_extensions": [
			"storage_zfs_remove_snapshots",
			"container_host_shutdown_timeout",
			"container_syscall_filtering",
			"auth_pki",
			"container_last_used_at",
			"etag",
			"patch",
			"usb_devices",
			"https_allowed_credentials",
			"image_compression_algorithm",
			"directory_manipulation",
			"container_cpu_time",
			"storage_zfs_use_refquota",
			"storage_lvm_mount_options",
			"network",
			"profile_usedby",
			"container_push",
			"container_exec_recording",
			"certificate_update",
			"container_exec_signal_handling",
			"gpu_devices",
			"container_image_properties",
			"migration_progress",
			"id_map",
			"network_firewall_filtering",
			"network_routes",
			"storage",
			"file_delete",
			"file_append",
			"network_dhcp_expiry",
			"storage_lvm_vg_rename",
			"storage_lvm_thinpool_rename",
			"network_vlan",
			"image_create_aliases",
			"container_stateless_copy",
			"container_only_migration",
			"storage_zfs_clone_copy",
			"unix_device_rename",
			"storage_lvm_use_thinpool",
			"storage_rsync_bwlimit",
			"network_vxlan_interface",
			"storage_btrfs_mount_options",
			"entity_description",
			"image_force_refresh",
			"storage_lvm_lv_resizing",
			"id_map_base",
			"file_symlinks",
			"container_push_target",
			"network_vlan_physical",
			"storage_images_delete",
			"container_edit_metadata",
			"container_snapshot_stateful_migration",
			"storage_driver_ceph",
			"storage_ceph_user_name",
			"resource_limits",
			"storage_volatile_initial_source",
			"storage_ceph_force_osd_reuse",
			"storage_block_filesystem_btrfs",
			"resources",
			"kernel_limits",
			"storage_api_volume_rename"
		],
		"api_status": "stable",
		"api_version": "1.0",
		"auth": "trusted",
		"public": false,
		"environment": {
			"addresses": [
				"192.168.254.38:8443",
				"192.168.253.1:8443",
				"10.1.8.4:8443"
			],
			"architectures": [
				"x86_64",
				"i686"
			],
			"certificate": "-----BEGIN CERTIFICATE-----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\nGiemI2UrzoT/avhxsd7PsOo=\n-----END CERTIFICATE-----\n",
			"certificate_fingerprint": "0400d519af8ead8c7883e11fb98f4e7c5f354a1a13c4ce283357241d5dac6d0b",
			"driver": "lxc",
			"driver_version": "2.1.1",
			"kernel": "Linux",
			"kernel_architecture": "x86_64",
			"kernel_version": "4.4.0-97-generic",
			"server": "lxd",
			"server_pid": 2491,
			"server_version": "2.19",
			"storage": "dir | zfs",
			"storage_version": "1 | 0.6.5.6-0ubuntu16"
		}
	} 
Creating u1
DBUG[10-21|00:40:01] Connecting to a remote simplestreams server 
DBUG[10-21|00:40:01] Connected to the websocket 
DBUG[10-21|00:40:01] Sending request to LXD                   etag= method=POST url=http://unix.socket/1.0/containers
DBUG[10-21|00:40:01] 
	{
		"architecture": "",
		"config": null,
		"devices": {},
		"ephemeral": false,
		"profiles": null,
		"stateful": false,
		"description": "",
		"name": "u1",
		"source": {
			"type": "image",
			"certificate": "",
			"alias": "16.04",
			"server": "https://cloud-images.ubuntu.com/releases",
			"protocol": "simplestreams",
			"mode": "pull"
		},
		"instance_type": ""
	} 
DBUG[10-21|00:40:01] Got operation from LXD 
DBUG[10-21|00:40:01] 
	{
		"id": "94ebefc2-012d-4fec-90b9-fcaa2bc5530a",
		"class": "task",
		"created_at": "2017-10-21T00:40:01.72411447Z",
		"updated_at": "2017-10-21T00:40:01.72411447Z",
		"status": "Running",
		"status_code": 103,
		"resources": {
			"containers": [
				"/1.0/containers/u1"
			]
		},
		"metadata": null,
		"may_cancel": false,
		"err": ""
	} 
DBUG[10-21|00:40:01] Sending request to LXD                   etag= method=GET url=http://unix.socket/1.0/operations/94ebefc2-012d-4fec-90b9-fcaa2bc5530a
DBUG[10-21|00:40:01] Got response struct from LXD 
DBUG[10-21|00:40:01] 
	{
		"id": "94ebefc2-012d-4fec-90b9-fcaa2bc5530a",
		"class": "task",
		"created_at": "2017-10-21T00:40:01.72411447Z",
		"updated_at": "2017-10-21T00:40:01.72411447Z",
		"status": "Running",
		"status_code": 103,
		"resources": {
			"containers": [
				"/1.0/containers/u1"
			]
		},
		"metadata": null,
		"may_cancel": false,
		"err": ""
	} 
error: Failed container creation:
 - https://cloud-images.ubuntu.com/releases: Unpack failed, Failed to run: tar -C /var/snap/lxd/common/lxd/storage-pools/default/containers/u1 --numeric-owner -Jxf /var/snap/lxd/common/lxd/images/61d54418874f2f84e24ddd6934b3bb759ca76cbc49820da7d34f8b5b778e4816: xz: (stdin): Compressed data is corrupt
tar: Child returned status 1
tar: Error is not recoverable: exiting now.  xz: (stdin): Compressed data is corrupt