I'm getting some interesting test failures in my most recent revision of XML::RSS::Tools. Version 0.30 had some stupid errors in that I quickly fixed with version 0.31, I'm still getting some test failures but I can't replicate the problem.
I don't know if it's a bug in my code, my test or Test::Warn. Having more systems to help won't help per se (thanks for the previous offers) I need to figure out what is different about Perl 5.10.0 that works and Perl 5.10.0 that doesn't - the modules used in the tests even look the same...
Thanks to help it looks like it's a bug in Test::Warn in how it interacts with Sub::Uplevel. There doesn't seem to be anything wrong with my code!