How to investigate a build that fails for no apparent reason

I have a build that fails for no apparent reason. There appear to be no errors in the raw console output. If I log into the target machine, su the jenkins account, cd into the workspace directory and run the build manually, it runs to completion. What I do see in the log is that the build

Re: Publish JUnit test result report containing multiple testsuites

Thanks for the information. This confirmed my guess that only 1 per file was the answer. I refactored the test source to make multiple-test-suite files be larger single-test-suite files.

Publish JUnit test result report containing multiple testsuites

I have cxxtest unit tests publishing JUnit-like output using a custom XmlPrinter. A few test files contain multiple testsuites, causing an xml output with multiple elements, example; However, Jenkins Junit publisher ch