Gitlab Runners RPC failed

I have followed the guide to registering a new runner. When my pipeline jobs get run I can see the output on the gitlab-runner and then error message in my gitlab project. I can’t seem to fathom what is actually happening. The repository isn’t large at all ~300k
Can anyone indicate what the error may be.
I am using a shell executor.

passfile: false
extension: ""
  job=767 project=164 runner=b7qQmm9Z
Using Shell executor...                             job=767 project=164 runner=b7qQmm9Z
Waiting for signals...                              job=767 project=164 runner=b7qQmm9Z
Executing build stage                               build_stage=prepare_script job=767 project=164 runner=b7qQmm9Z
Executing build stage                               build_stage=get_sources job=767 project=164 runner=b7qQmm9Z
Executing build stage                               build_stage=upload_artifacts_on_failure job=767 project=164 runner=b7qQmm9Z
WARNING: Job failed: exit status 1                  duration=874.880649ms job=767 project=164 runner=b7qQmm9Z
Appending trace to coordinator... ok                code=202 job=767 job-log=0-834 job-status=running runner=b7qQmm9Z sent-log=0-833 status=202 Accepted
Submitting job to coordinator... ok                 code=200 job=767 job-status= runner=b7qQmm9Z
ERROR: Failed to process runner                     builds=0 error=exit status 1 executor=shell runner=b7qQmm9Z
Feeding runners to channel                          builds=0
Checking for jobs... nothing                        runner=b7qQmm9Z
Feeding runners to channel                          builds=0
Checking for jobs... nothing                        runner=b7qQmm9Z
Feeding runners to channel                          builds=0
Checking for jobs... nothing                        runner=b7qQmm9Z
Feeding runners to channel                          builds=0
Checking for jobs... nothing                        runner=b7qQmm9Z
Feeding runners to channel                          builds=0