Attaching Disk On Run Appears Broken

[jpe42]

I get the following error for configuring either an existing disk or a non-existant disk.

~$ docker run --name="redis-6379" -p 6379:6379/tcp --volume-driver=gce -v redis-6379:/redis/data jamespedwards42/alpine-redis:unstable --port 6379 --protected-mode no
docker: Error response from daemon: create 068f888f4198dd087bca932dd14979156f5cc5b5f458cc7469591cd4a4a88672: VolumeDriver.Create: googleapi: Error 400: Invalid value '068f888f4198dd087bca932dd14979156f5cc5b5f458cc7469591cd4a4a88672'. Values must match the following regular expression: '[a-z](?:[-a-z0-9]{0,61}[a-z0-9])?', invalidParameter.
See 'docker run --help'.