I don't think that casting a range of bits as some other arbitrary type "is a bug nobody sees coming".
C++ compilers also warn you that this is likely an issue and will fail to compile if configured to do so. But it will let you do it if you really want to.
That's why I love C++
I guess what you mean is that Rust doesn't advertise the compiler as being bug-free?
The massive difference here is that C++ has no soundness guarantees even when the compiler is working as intended, whereas Rust actually does in fact give soundness guarantees in the absence of compiler bugs.