Docker socker binding

Running with gitlab-runner 11.4.1 (2b45abe3)
  on rragequit-dockersock 5a98c499
Using Docker executor with image docker:latest ...
Pulling docker image docker:latest ...
Using docker image sha256:062267097b77e3ecf374b437e93fefe2bbb2897da989f930e4750752ddfc822a for docker:latest ...
Running on runner-5a98c499-project-8972155-concurrent-0 ...
Cloning repository...
Cloning into '/builds/PerpetualWar/'...
Checking out f9d0657d as master...
Skipping Git submodules setup
$ docker info
Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?
ERROR: Job failed: exit code 1

Im trying to use docker build with docker socket binding, but I get this error always. Im running gitlab-runner with root permissions and docker daemon is certainly running as well. Any ideas would be appreciated.