> I really miss stack traces

What's to miss? Go has exception handlers and stack traces built-in and has had since day one. Even the standard library does it (e.g. encoding/json), if it is that you were waiting on some kind of "blessed permission" to proceed. Exception handling isn't appropriate for every situation (no tool is appropriate for every situation), but if it is for the kinds of problems you have, use it. The tools are there to use.