i hit that one earlier today too - saw

[glossy beacon]

Did you do anything similar to Chris where you restarted/hibernated/etc. your computer recently and then this started happening?

[willow thunder]

I don't think so, in fact I had used the engine a bit prior, it's possible that it crashed though, I remember seeing a suspiciously short uptime in docker ps but don't think there's a way to recover the crash logs in that case (this was the stable engine container) so I moved on and nuked it