Comment by testdelacc1

As the link I posted says

> Portability has been far easier than C, though sometimes we're forced to deal with differences between operating systems. (For example, when we've had to get into the fine details of filesystem permissions, we've found that most everything we do takes different handling on Windows.)

Remember, we’re not talking about the language. We’re talking about the stdlib and the surrounding ecosystem. The Rust stdlib and third party libraries generally handle windows well, so the Tor developers don’t need to special case windows.