[ccnet-user] msbuild task not producing msbuild-results.xml artifact

[Ryan W]

I just upgraded to CC.NET 1.5.7256.1 last week and ever since, I no
longer get a msbuild-results.xml file in the artifacts directory.
When I upgraded, I uninstalled the old and installed fresh, so maybe
there's something I'm missing.  Here's my project definition:

  <project name="Trunk" >
    <workingDirectory>E:\ccnetWorking\Projects\trunk</
workingDirectory>
    <artifactDirectory>E:\ccnetWorking\buildFiles\Project\Artifacts</
artifactDirectory>
    <webURL>[omitted]</webURL>
    <modificationDelaySeconds>0</modificationDelaySeconds>
    <triggers>
      <intervalTrigger name="continuous" seconds="180"
initialSeconds="30"/>
    </triggers>
    <state type="state" directory="E:\CCNetState" />
    <labeller type="lastChangeLabeller">
      <prefix>[omitted]</prefix>
    </labeller>
    <sourcecontrol type="svn">
      <executable>C:\Program Files\CollabNet\Subversion Server
\svn.exe</executable>
      <trunkUrl>[omitted]</trunkUrl>
      <workingDirectory>E:\ccnetWorking\Projects\trunk</
workingDirectory>
      <username></username>
      <password></password>
    </sourcecontrol>
    <tasks>
      <msbuild>
        <executable>C:\Windows\Microsoft.NET\Framework
\v4.0.30319\MSBuild.exe</executable>
        <workingDirectory>Proejct</workingDirectory>
        <projectFile>E:\ccnetWorking\Projects\trunk\build.proj</
projectFile>
        <buildArgs>/t:Build /p:Configuration=Debug /v:diag</buildArgs>
        <timeout>900</timeout>
        <logger>C:\Program Files\CruiseControl.NET\server
\ThoughtWorks.CruiseControl.MSBuild.dll</logger>
      </msbuild>
    </tasks>
    <publishers>
      <merge>
        <files>
        </files>
      </merge>
      <xmllogger />
    </publishers>
  </project>

I verified the ThoughtWorks.CruiseControl.MSBuild.dll is in that
location.  Any ideas?