Middlewares don't work

[sdhull]

I tried Memprof::Middleware and Memprof::Tracer, but both produced extremely peculiar results. I kind of expected them to dump json stuff to a log or to different log files, or at least a list similar to Memprof.stats right there in the console. But instead, after each request, it seemed like they were printing backtraces, but no errors.

I'll send you an example if you like, but won't include it here as it's extremely extremely lengthy.