Output from https://gist.github.com/motin/cca880c647263eb5e98d9f1e0d60a3c5 for Docker 1.10.3 running on OSX

out.txt

+ docker version
Client:
 Version:      1.10.3
 API version:  1.22
 Go version:   go1.5.3
 Git commit:   20f81dd
 Built:        Thu Mar 10 21:49:11 2016
 OS/Arch:      darwin/amd64

Server:
 Version:      1.10.3
 API version:  1.22
 Go version:   go1.5.3
 Git commit:   20f81dd
 Built:        Thu Mar 10 21:49:11 2016
 OS/Arch:      linux/amd64
+ docker info
Containers: 1202
 Running: 0
 Paused: 0
 Stopped: 1202
Images: 848
Server Version: 1.10.3
Storage Driver: aufs
 Root Dir: /mnt/sda1/var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 3256
 Dirperm1 Supported: true
Execution Driver: native-0.2
Logging Driver: json-file
Plugins:
 Volume: local
 Network: null host bridge
Kernel Version: 4.1.19-boot2docker
Operating System: Boot2Docker 1.10.3 (TCL 6.4.1); master : 625117e - Thu Mar 10 22:09:02 UTC 2016
OSType: linux
Architecture: x86_64
CPUs: 1
Total Memory: 2.937 GiB
Name: default
ID: VENW:Y4HB:MC4D:5B55:3YQ6:WTIZ:JXKC:D56F:GCH7:GLZS:JTIO:KCFI
Debug mode (server): true
 File Descriptors: 15
 Goroutines: 21
 System Time: 2016-04-12T14:10:13.078082982Z
 EventsListeners: 0
 Init SHA1:
 Init Path: /usr/local/bin/docker
 Docker Root Dir: /mnt/sda1/var/lib/docker
Username: neam
Registry: https://index.docker.io/v1/
Labels:
 provider=virtualbox
+ docker build -t test .
Sending build context to Docker daemon 100.1 MB
Step 1 : FROM busybox
 ---> 47bcc53f74dc
Step 2 : COPY . /
 ---> c9de9c8630d6
Removing intermediate container 83f0a7456f68
Successfully built c9de9c8630d6
+ echo foo
+ docker build -t test-updated -f Dockerfile.update .
Sending build context to Docker daemon 100.1 MB
Step 1 : FROM test
 ---> c9de9c8630d6
Step 2 : COPY . /
 ---> 16d067fe26f0
Removing intermediate container cf6f8d776008
Successfully built 16d067fe26f0
+ docker history test-updated
IMAGE               CREATED                  CREATED BY                                      SIZE                COMMENT
16d067fe26f0        Less than a second ago   /bin/sh -c #(nop) COPY dir:ebe763ee4381876516   100 MB
c9de9c8630d6        3 seconds ago            /bin/sh -c #(nop) COPY dir:b8abac2fbf2221e42c   100 MB
47bcc53f74dc        3 weeks ago              /bin/sh -c #(nop) CMD ["sh"]                    0 B
<missing>           3 weeks ago              /bin/sh -c #(nop) ADD file:47ca6e777c36a4cfff   1.113 MB