Git Pull via REST in Lucee - cfml

Question

Attempting to create a REST service in Lucee to pull down changes in the git repo.
Server is Lucee on Tomcat on Windows Server 2012
<cffunction name="gitPull"
access = "remote"
httpMethod="GET"
restPath="git/pull"
>
<cftry>
<cfexecute
name="C:\WINDOWS\SYSTEM32\cmd.exe"
arguments="/c c:\sites\git-pull-stadge.bat"
variable="batchOutput"
<!--- outputfile="c:\sites\stadge-pull-output.txt" --->
timeout="5000"
errorVariable="errorMessage"
>
Lucee documentation says this tag must have a body
</cfexecute>
<cfcatch>
<cfscript>
return cfcatch;
</cfscript>
</cfcatch>
</cftry>
<cfscript>
return {'output' = batchOutput, 'errors' = errorMessage};
</cfscript>
</cffunction>
Batch file is as follows:
c:
cd \repo_folder
git config --global credential.helper wincred
git fetch
git pull
The Lucee service is Log On As Local System
Batch file works when called from any folder on the server, but the batch file is not run and no output is returned by the function.
Introducing errors into the syntax successfully triggers the cftry/cfcatch and the error is returned as it should be.
What am I missing?