I uploaded the build log that was going on when it crashed - good thinking. Maybe you can reproduce the issue by doing "cat log" and see if the error parsing crashes? I save the output of all my builds to logfiles, and I also have the logs from all the builds before this if you are interested. I've done this long build many times before, and the other instance was a very similar one, so SE has handled it before. Good thinking to ask for this.
If you still can't reproduce, I do have some custom error parsers defined, so we can try that if you can't reproduce.