When I run NUnit tests using the NUnit 3 Beta 1 the tests execute but the build fails when the NUnit plugin tries to publish the results. Exception I get in Jenkins console is:

Test Run Summary
Overall result: Passed
Tests run: 9, Passed: 9, Errors: 0, Failures: 0, Inconclusive: 0
Not run: 0, Invalid: 0, Ignored: 0, Skipped: 0
Start time: 2015-04-12 04:15:47Z
End time: 2015-04-12 04:24:43Z
Duration: 535.974 seconds

Results (nunit3) saved as nunit-selenium-testsuite.xml

Recording NUnit tests results
ERROR: Publisher hudson.plugins.nunit.NUnitPublisher aborted due to exception hudson.util.IOException2: Could not transform the NUnit report. Please report this issue to the plugin author
at hudson.plugins.nunit.NUnitArchiver.invoke(NUnitArchiver.java:60)
at hudson.plugins.nunit.NUnitArchiver.invoke(NUnitArchiver.java:26)
at hudson.FilePath.act(FilePath.java:989)
at hudson.FilePath.act(FilePath.java:967)
at hudson.plugins.nunit.NUnitPublisher.perform(NUnitPublisher.java:116)
at hudson.tasks.BuildStepMonitor$3.perform(BuildStepMonitor.java:45)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:761)
at hudson.model.AbstractBuild$AbstractBuildExecution.performAllBuildSteps(AbstractBuild.java:721)
at hudson.model.Build$BuildExecution.post2(Build.java:183)
at hudson.model.AbstractBuild$AbstractBuildExecution.post(AbstractBuild.java:670)
at hudson.model.Run.execute(Run.java:1766)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:374)
Caused by: org.xml.sax.SAXParseException; systemId: file:/C:/Jenkins/workspace/Saucery3NUnit/temporary-junit-reports/temp-junit.xml; lineNumber: 12; columnNumber: 9; Content is not allowed in prolog.
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:257)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:348)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:205)
at hudson.plugins.nunit.NUnitReportTransformer.splitJUnitFile(NUnitReportTransformer.java:102)
at hudson.plugins.nunit.NUnitReportTransformer.transform(NUnitReportTransformer.java:72)
at hudson.plugins.nunit.NUnitArchiver.invoke(NUnitArchiver.java:55)