Unless the "poor ergonomics" and lack of shortcuts are explicitly what provides the static memory safety.
Apart from the static memory safety USP, Rust is repeating too many problems of C++ for my taste, and at a much faster pace.
The problem is that there is too much syntax, too many symbols, and too many keywords. I just keep forgetting how to use impl and lifetimes and single quotes and whatnot. It makes it really tough to use as an occasional language. And if I can't do that, then how can I get confident enough to use it in my job?
https://aardappel.github.io/lobster/memory_management.html
It uses compile-time reference counting / lifetime analysis / borrow checking. Which is mostly inlined to the point that there is none of the sort in the compiled output and objects can even live on the stack. It basically looks like Python but is nothing like it underneath, and of course with no GIL. You can run it on JIT or compile it to C++.
There's also Koka with the Perceus algorithm on compile time and looks like a much cleaner language than Rust. It also tracks side effects of every function in a type where pure and effectful computations are distinguished.
This is exactly how I feel about Rust.
There are some good ideas in there, hiding behind a horrible language design. I am waiting for someone to provide a more developer friendly alternative with the simplicity of C or Go.
FWIW there is interest in adding bounds checking to C [1]. That discussion includes feedback from at least one member of the C standards committee.
[1] https://discourse.llvm.org/t/rfc-enforcing-bounds-safety-in-...