A lot of people probably have that hard bug they spent a lot of hours trying to solve. Almost 1.5 years after solving my hardest bug I got nostalgic and thought "Hey, this was pretty cool! I should write about it to not forget it". Since it's so long ago there might be things I misremember, but the gist of it should still apply. Let's jump to it! Presenting: "The curious case of the crashing compiler".