It ran fine here for a bit using the Qt5 Dooble, eventually trping at a trap (int3) in a function that judging by its name, tries to allocate more shared memory.
It's pretty resource hungry, I had nothing else running and VIRTUALADDRESSLIMIT=3072. I think we're just hitting the limits of using a 32bit OS.
Martin, the exceptq should just work as long as an exception occurs. Seems a lot of these crashes don't raise an exception, the process just vanishes.