I think it is unlikely to see rust gain much traction in the game dev world. Everything is currently done in C++, and there is low incentives to move to something "safer" or "more secure", because that's not seen as relevant properties by game developers.

What matters for game dev is mostly (not listed in a specific order):

- raw performances

- low latency

- as low as an overhead as possible when dealing with GPUs

- control over memory management

In that context the borrow checker can be an unnecessary constraint, and the safety concern isn't really something that relevant. In the other hand, the rust package manager is really something that is missing in the C++ world, and would be awesome to have for game devs.