ghost container

CoreOS alpha (745.1.0)
core@kalimdor ~ $ docker ps -a
CONTAINER ID        IMAGE                       COMMAND                CREATED             STATUS                    PORTS                                                   NAMES
bde18d705b86        sameersbn/gitlab:7.12.2-2   "/sbin/entrypoint.sh   6 days ago          Up 26 seconds             443/tcp, 0.0.0.0:10022->22/tcp, 0.0.0.0:10080->80/tcp   gitlab
42b5896ee45e        registry:2                  "registry cmd/regist   3 weeks ago         Up 29 seconds             0.0.0.0:5000->5000/tcp                                  registry
eb05cf6fd7ec        redis:3                     "/entrypoint.sh redi   5 weeks ago         Exited (0) 4 weeks ago                                                            dev-redis
4bb6c15f0b1c        sameersbn/redmine:2.6.1     "/app/init app:start   3 months ago        Up 26 seconds             443/tcp, 0.0.0.0:11080->80/tcp                          redmine
67d683ac603d        nginx:latest                "nginx -g 'daemon of   8 months ago        Up 22 hours               0.0.0.0:80->80/tcp, 0.0.0.0:443->443/tcp                nginx_rp
78b356930a00        sameersbn/redis:latest      "/start"               8 months ago        Up 22 hours               6379/tcp                                                redis
6c35ad536698        postgres:9.3                "/docker-entrypoint.   8 months ago        Up 29 seconds             0.0.0.0:5432->5432/tcp                                  postgres
3101d38d5253        busybox                     "true"                 8 months ago        Exited (0) 8 months ago                                                           ludiino-data
core@kalimdor ~ $ docker stop redis
Post http:///var/run/docker.sock/v1.19/containers/redis/stop?t=10: EOF. Are you trying to connect to a TLS-enabled daemon without TLS?
Error: failed to stop containers: [redis]
core@kalimdor ~ $ docker rm -f redis
EOF. Are you trying to connect to a TLS-enabled daemon without TLS?
Error: failed to remove containers: [redis]
core@kalimdor ~ $ docker version
Client version: 1.7.1
Client API version: 1.19
Go version (client): go1.4.2
Git commit (client): 786b29d-dirty
OS/Arch (client): linux/amd64
Server version: 1.7.1
Server API version: 1.19
Go version (server): go1.4.2
Git commit (server): 786b29d-dirty
OS/Arch (server): linux/amd64
core@kalimdor ~ $ uname -a
Linux kalimdor 4.0.7-coreos-r2 #2 SMP Thu Jul 16 20:45:29 UTC 2015 x86_64 Intel(R) Xeon(R) CPU X5650 @ 2.67GHz GenuineIntel GNU/Linux
core@kalimdor ~ $ cat /etc/systemd/system/redis.service
[Unit]
Description=Redis Container
After=docker.service
Requires=docker.service

[Service]
TimeoutStartSec=0
ExecStartPre=-/usr/bin/docker stop redis
ExecStart=/usr/bin/docker start -a redis

[Install]
WantedBy=multi-user.target
core@kalimdor ~ $ docker info
Containers: 8
Images: 279
Storage Driver: btrfs
 Build Version: Btrfs v3.17.3
 Library Version: 101
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 4.0.7-coreos-r2
Operating System: CoreOS 745.1.0
CPUs: 1
Total Memory: 1.959 GiB
Name: kalimdor
ID: 26X4:QCC5:K2PI:TNQ7:YSGA:YOYL:6TBP:PMNY:JQ6V:2LPF:Y4DD:KAYG
Username: so0k
Registry: https://index.docker.io/v1/