Command "C:\Program Files (x86)\Git\cmd\git.exe checkout -f c7921f6e9a5887a7647ec180c7224ffc52b76149" returned status code 128:
stderr: fatal: Unable to create 'C:/Program Files (x86)/Jenkins/jobs/Stan/workspace/.git/index.lock': File exists.
If no other git process is currently running, this probably means a
git process crashed in this repository earlier. Make sure no other git
process is running and remove the file manually to continue.