My current project is C++ backend. I do a lot of debugging but all of it concerns business logic, some scientific calculations and the likes. In this situations having Rust will give me exactly zero benefits. As for "safety". I am a practical man and I pay my own money for development. Being able to use modern C++ I have forgotten when was the last time I had any memory related issue. My backends run for years serving many customers with no complaints in this department. Does not mean of course they're really really safe but I sleep well ;)