Rust is not a C replacement, it is a C++ replacement. Many of the people writing code in C do not want to use C++. And many of the embedded use cases for C al

Rust is not a C replacement, it is a C++ replacement. Many of the people writing code in C do not want to use C++. And many of the embedded use cases for C already involve very careful memory usage. If you've banned malloc and don't have threads, you've removed a huge swath of common bug sources right off the bat. For someone writing code to setup registers on a DMA controller, Rust has nearly 0 benefit. (That said, no one should be writing new command line utilities in C, parsing arbitrary data in C is dangerous!)