Error "No such user gitlab-runner" at running my runner

Hi,

I have installed a specific runner and was able to register it to my GitLab instance (runner is shown in Settings > CI/CD with a green dot). After that I created a little test .gitlab-ci.yml and pushed it to trigger the job.

This is the output (including the error message):

Running with gitlab-runner 10.1.0 (c1ecf97f)
  on TM-GitLab-Runner (********)
Using Shell executor...
Error: No such user gitlab-runner
cat: /home/gitlab-runner/.path-to-drive-u: No such file or directory
Error: No such user gitlab-runner
Running on ********...
Error: No such user gitlab-runner
cat: /home/gitlab-runner/.path-to-drive-u: No such file or directory
Error: No such user gitlab-runner
Cloning repository...
Cloning into '/home/gitlab-runner/builds/********/0/tm/tm-g4'...
remote: Git access over HTTP is not allowed
fatal: unable to access 'https://gitlab-ci-token:xxxxxxxxxxxxxxxxxxxx@*********.git/': The requested URL returned error: 403
ERROR: Job failed: exit status 1

Note: I replaced some infos by ****

Can somebody help me to figure out the problem?

Edit: I made this first push via the browser (logged in as root).
I also tried out to make some changes and push it to retrigger the job by an normal user (owner) from an other machine and then the error messages changes to “Error: No such user root”. What does that mean?

Best regards

Okay I had to enable SSH and also HTTPS for the project. After that the runner build my project at a push and I get the wonderful green sticker “Passed”. But there a still a lot error messages inside the log wicth “no such user root” …

What does that mean??