Rust is used for writing entire OS (e.g Redox) or parts of the OS that needs precise management of resources (e.g Linux kernel, Windows). It is used to write pa

Rust is used for writing entire OS (e.g Redox) or parts of the OS that needs precise management of resources (e.g Linux kernel, Windows). It is used to write parts of web browsers (servo and quantum parts of firefox), game engines and in embedded systems. It's used everywhere that traditionally used C, C++ or Ada. There really isn't a justification to dismiss Rust as a systems programming language. The limitations that you claim are not there. The reasons are there in the other reply to you.