You can. There are definitely still footguns - some things are just not easy. But there are also fewer footguns, and the overall type system makes modelling problems in ways which are often simpler to reason about more achievable (trivial example - state machines are common, and easy to represent in relatively safe ways with exhaustively checked enums, matching, etc.)

Is rewriting something in Rust a guarantee of no bugs? Nope. But it does likely make it easier for the rewriters to reduce the number of bugs.