Store error output from 'hg id' to help diagnose why it's failing at the moment.
<?xml version="1.0"?>
<project name="SF-PACKAGE-REFS">
<path id="sf.spec.system.definition.files">
<fileset dir="${sf.spec.job.drive}/" casesensitive="false">
<include name="${sf.spec.systemdefinition.location}"/>
</fileset>
</path>
</project>