So I'm about 8 years into a fortress in a lightly modded world, and something is making my game crash. I'm not getting any announcement before it does, but it always happens at a consistent time, about two or three minutes of unpaused play after after loading from the most recent save.
Mod-wise, I gave a bunch of exotics the [pet] tag and GCSs the [child] tag and modded out all the civilized races except dwarves and kobolds, but it's otherwise vanilla. I also fiddled with the megabeast numbers and did a short worldgen, so there are an unusual number of those around, and that seems to have caused a similar issue once already; the game would run for a while after being loaded, but then crash, and I'd have to go back to the last seasonal save, and eventually an ettin showed up and got cage trapped and the crashes stopped. However, that doesn't seem to be the issue this time, since I've tried turning invaders off and the same thing still happens. I also thought that it might be an issue of a glitched item that came in with the traders, but forbidding the entire depot doesn't stop the crash either. Is there anything else I can check? I don't want to put in a bug report with so little idea of what's going on here.
I've uploaded the save
here if anybody wants to take a look at it - I've made pretty extensive use of the workflow and buildingplan tools from DFHack, though, so I'm not actually sure if it'll load properly without those.