I’ve released a new version of Capture::Tiny, which now catches exceptions, cleans up file handles, then rethrows the exception. This is the first major bug-fix in a while and was easy to address.
I’m feeling pretty confident that Capture::Tiny is a robust, cross-platform answer for any sort of output capturing. If you’d like to understand why, the slides from my talk, “How (not) to capture output in Perl”, provide an explanation of why most other output capture approaches are flawed and why this is the single best tool for the job.