Error output on start

[karlkfi]

On my local boot2docker:

$ docker run --rm mesosphere/mesos-slave-dind:0.2.1_mesos-0.23.0_docker-1.8.2_ubuntu-14.04.2
/dev/mapper/control: open failed: Operation not permitted
Failure to communicate with kernel device-mapper driver.
Check that device-mapper is available in the kernel.
Command failed
mount: permission denied
Could not mount /sys/kernel/security.
AppArmor detection and --privileged mode might break.
0+0 records in
0+0 records out
0 bytes (0 B) copied, 5.6115e-05 s, 0.0 kB/s
mke2fs 1.42.9 (4-Feb-2014)
/data/docker is not a block special device.
Proceed anyway? (y,n) Discarding device blocks: done
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=0 blocks, Stripe width=0 blocks
327680 inodes, 1310720 blocks
65536 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=1342177280
40 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks:
    32768, 98304, 163840, 229376, 294912, 819200, 884736

Allocating group tables: done
Writing inode tables: done
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

mount: Could not find any loop device. Maybe this kernel does not know
       about the loop device? (If so, recompile or `modprobe loop'.)
add bridge failed: Operation not permitted
bridge docker0 does not exist!
Cannot find device "docker0"
RTNETLINK answers: Operation not permitted
Cannot find device "docker0"
Cannot find device "docker0"
Using network 0.0.1.0/24 for docker containers
time="2015-10-17T01:50:14.972501676Z" level=info msg="Listening for HTTP on unix (/var/run/docker.sock)"
time="2015-10-17T01:50:15.106695536Z" level=error msg="'overlay' is not supported over aufs."
time="2015-10-17T01:50:15.106968262Z" level=fatal msg="Error starting daemon: error initializing graphdriver: backing file system is unsupported for this graph driver"

I had to disable the set -e otherwise it explodes early.