How good is the debugger? "edit and continue"? Hot reload? Full IDE?

I don't know enough Rust, but I find these aspects are seriously lacking in C++ on Linux, and it is one of the few things I think Windows has it better for developers. Is Rust better?

Slow compared to what? I’m still scraping my head at this. My cargo builds are insanely fast, never taking more than a minute or two even on large projects. The only ahead of time compiled language I’ve used with faster compilation speed is Go, and that is a language specifically designed around (and arguably crippled by) the requirement for fast compilation. Rust is comparable to C compilation, and definitely faster than C++, Haskell, Java, Fortran, Algol, and Common Lisp.