seer/tests/hellorrmnwe

https://github.com/epasveer/seer/issues/181

I can reproduce it like this:

Create a segfaulting file, e.g. this mnwe.cpp file:

    int main() {
        int * i = nullptr;
        *i = 42;

        return 0;
    }

Compile as g++ -g -O0 mnwe.cpp -o mnwe

Record the trace using rr: rr record --output-trace-dir=rrrun ./mnwe (you should see the segfault)

Start seergdb with this trace: seergdb --rr rrrun

When seergbd stops before main(), make sure that the 'Locals' tab is open
Hit F8 to run the trace