I'm no Rust expert but it seems to have a lot of unsafe in core code. And understandably so: https://github.com/search?q=repo%3Arust-lang%2Frust+unsafe+languag

I'm no Rust expert but it seems to have a lot of unsafe in core code. And understandably so: https://github.com/search?q=repo%3Arust-lang%2Frust+unsafe+language%3ARust&type=code&p=5&l=Rust https://github.com/search?q=repo%3Arust-lang%2Frust+unsafe+l... I don't think coq, as being presented here, can verify all unsafe calls.