ScaleCRISPR (repo cloned from GitHub) will crash at process qcGuideinput with error code 126 because the 'qcGuideInput.py' script does not have execute permissions
Pipeline was run on a HPC using singularity and the Slurm executor.

'countGuide.py' and 'qcGuideInput.py' scripts also lack execute permissions
Fixing these file permissions (e.g. chmod -R 770 ScaleCRISPR/bin/) allows the pipeline to complete successfully