Running with gitlab-runner 13.10.0 (54944146)
  on 46f8988f404a ZxrVoZ3b
section_start:1652457419:prepare_executor
Preparing the "docker" executor
Using Docker executor with image python:latest ...
Pulling docker image python:latest ...
Using docker image sha256:bda19bf988a7c3723013d80d8f377137630960d73302b119fc1eca0c9f5768c7 for python:latest with digest python@sha256:85f504ba9cad91a636b58fdec377eb4b69ed4f6ca593a6a7ebf84617f39bad49 ...
section_end:1652457421:prepare_executor
section_start:1652457421:prepare_script
Preparing environment
Running on runner-zxrvoz3b-project-16-concurrent-0 via 46f8988f404a...
section_end:1652457422:prepare_script
section_start:1652457422:get_sources
Getting source from Git repository
Fetching changes with git depth set to 20...
Reinitialized existing Git repository in /builds/gitlab/FObersteiner/icartt-dev/.git/
fatal: couldn't find remote ref refs/heads/dev
section_end:1652457423:get_sources
section_start:1652457423:cleanup_file_variables
Cleaning up file based variables
section_end:1652457423:cleanup_file_variables
ERROR: Job failed: exit code 1