I am using RobotFramework and SauceLabs in my Jenkins job to do some automated testing. I am generating xunit reports with Robot and have it configured in such a way to log messages from stdout. Here is an example snippet of my xunit file:

<system-out>
<![CDATA[
SauceOnDemandSessionID=93b1f4c98c2140108f97857326f9affe job-name=Some job name
]]>
</system-out>

I have set up the post-build script to process this xunit file and I have checked the box for embedding the SauceLabs report. Despite all of this, I am getting this message in my console output:

The Sauce OnDemand plugin is configured, but no session IDs were found in the test output

I am completely stumped as to why it is not working. Any help with this issue would be greatly appreciated!