Deploying GitLab Runner to Heroku?

I’ve tried following the different guides for how one can install GitLab runner in order to find one that I can make work with Heroku but the furthest I’ve gotten is to have my push to Heroku rejected. Is there anyone here with any experience in a method that works?

remote:  !     Push rejected, failed to compile Go app.
remote:  !     Push failed
remote: Verifying deploy...
remote: !       Push rejected to pum-gitlab-runner.
 ! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to ''

Tha’s the error received at the end of the unsuccessful push attempt.