It should be noted that while Rust is rarely used, some very big players are pushing it. E.g. last year Microsoft Azure’s CEO tweeted that “it’s time to halt starting any new projects in C/C++ and use Rust for those scenarios where a non-GC language is required”, Windows contains some Rust code now and the Linux kernel also supports Rust in addition to C since December.
For the second one there is an issue on github discussing it.