Not possible to install Docker @ Raspberry Pi

Pi was set up with the newest Raspbain image.
apt-get update & upgrade & upgrade-dist was performed.
After that the script from get.docker.cim was executed.
I’ve done this successfully on different linux computers. (x86, rpi (arm))
This time:
docker ps
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
root@docker:/data# service docker start
Job for docker.service failed because a fatal signal was delivered causing the control process to dump core.
See “systemctl status docker.service” and “journalctl -xe” for details.
systemctl status docker.service
â docker.service - Docker Application Container Engine
Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled)
Active: inactive (dead) (Result: core-dump) since Mon 2019-02-11 13:46:48 GMT; 3min 13s ago
Docs: https://docs.docker.com
Process: 4653 ExecStart=/usr/bin/dockerd -H unix:// (code=dumped, signal=SEGV)
Main PID: 4653 (code=dumped, signal=SEGV)
CPU: 771ms

Feb 11 13:46:48 docker systemd[1]: Failed to start Docker Application Container Engine.
Feb 11 13:46:48 docker systemd[1]: docker.service: Unit entered failed state.
Feb 11 13:46:48 docker systemd[1]: docker.service: Failed with result ‘core-dump’.
Feb 11 13:46:48 docker systemd[1]: Stopped Docker Application Container Engine.