That's not true though. You can get the backtrace and other useful information from the coredump mentioned by the error message by loading it with gdb. Not as good as attaching it to a living process, since you can't see step-by-step what happens leading up to the error, but still quite useful.
You can also debug post-mortem with the minidump or the core dump file with WDT on Windows. Great fun and a good way to brush up on your assembly skills