I have a non-caves local server (with mods and adjustments to world settings) where I'm always in SuperGodMode so I can experiment. It's been working absolutely fine up until the past few days, zero issues. The last time I played was either Friday, July 7th, or Saturday, July 8th.
I started the world back up on Friday July 14th, after hotfix 223464: http://forums.kleientertainment.com/topic/80582-game-update-223464/ Thinking it was a mod causing issues, I updated them all and cleaned them. I verified the integrity of my game cache, restarted Steam, and restarted my computer. The old world still crashed, and after much experimentation and flipping mods on/off, I figured out it was c_godmode() or c_supergodmode causing it.
I made a brand new world. No mods, no caves, and no adjustments to world settings - the only thing I did was use console to run c_supergodmode() and/or c_godmode(). I also experimented with Survival/Endless/Wilderness, and mixes of Public/Friends-Only/Local. Each world crashes after roughly 40 minutes. I've attached my brand new world's client_log and DXDiag, and the error received. I don't have any recent MDMP files, they're all dated 2014. If there's something else you need, just lemme know. If it helps, I used Task Manager to watch my memory performance. With DST running, I would gradually eat through roughly 3 GB and then crash.