Description of problem:
After upgrading to docker-1.7.0-6.git74e7a7a.fc22 I'm getting the following error when I try to start a container:

Error response from daemon: Cannot start container dd8ca05f537998986556d821b4e23a863d845a70a1647700edd44952b30d05e8: socket operation on non-socket 


Once I downgrade back to docker-1.6.0-3.git9d26a07.fc22 I am able to create docker containers again just fine. 

Version-Release number of selected component (if applicable):
docker-1.7.0-6.git74e7a7a.fc22.armv7hl

How reproducible:
Always

Steps to Reproduce:
1. dnf update docker --enablerepo=updates-testing --refresh
2. docker pull maxamillion/fedora-armhfp 
3. docker run -ti maxamillion/fedora-armhfp /bin/bash

(NOTE: This is a docker image from dgilmore that I pushed into the docker hub for some OpenShift+FedoraARM testing purposes.

[root@builder origin]# docker images
REPOSITORY                            TAG                 IMAGE ID            CREATED             VIRTUAL SIZE
docker.io/maxamillion/fedora-armhfp   latest              c9c4263f83dc        4 weeks ago         171.2 MB
[root@builder origin]# docker run -ti maxamillion/fedora-armhfp /bin/bash
Error response from daemon: Cannot start container dd8ca05f537998986556d821b4e23a863d845a70a1647700edd44952b30d05e8: socket operation on non-socket
[root@builder origin]# dnf downgrade docker
Last metadata expiration check performed 0:20:56 ago on Mon Jul  6 17:42:41 2015.
Dependencies resolved.
======================================================================================================================= Package                Arch                    Version                                   Repository              Size
=======================================================================================================================
Downgrading:
 docker                 armv7hl                 1.6.0-3.git9d26a07.fc22                   fedora                 4.3 M

Transaction Summary
=======================================================================================================================
Downgrade  1 Package

Total download size: 4.3 M
Is this ok [y/N]: y
Downloading Packages:
docker-1.6.0-3.git9d26a07.fc22.armv7hl.rpm                                              11 MB/s | 4.3 MB     00:00    
-----------------------------------------------------------------------------------------------------------------------
Total                                                                                  1.2 MB/s | 4.3 MB     00:03     
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Downgrading : docker-1.6.0-3.git9d26a07.fc22.armv7hl                                                             1/2 
  Erasing     : docker-1.7.0-6.git74e7a7a.fc22.armv7hl                                                             2/2 
  Verifying   : docker-1.6.0-3.git9d26a07.fc22.armv7hl                                                             1/2 
  Verifying   : docker-1.7.0-6.git74e7a7a.fc22.armv7hl                                                             2/2 
Downgraded:
  docker.armv7hl 1.6.0-3.git9d26a07.fc22                                                                               

Complete!
[root@builder origin]# systemctl restart docker
[root@builder origin]# docker run -ti maxamillion/fedora-armhfp /bin/bash                                              
[root@e1ad410bf339 /]#