Comment # 7 on bug 1012302 from Aleksa Sarai

@Jordi: Why hasn't the Docker package been updated? It looks like we're pinning
the old version still (which is why they can't update on TW):

# Containerd and runC are required as they are the only currently supported
# execdrivers of Docker. NOTE: The version pinning here matches upstream's
# Dockerfile to ensure that we don't use a slightly incompatible version of
# runC or containerd (which would be bad).
Requires:       containerd = 0.2.4+git0366d7e
Requires:       runc = 0.1.1+git02f8fa7