"Another difference in Rust is that values cannot be used after a move, while they simply "should not be used, mostly" in C++"

That's one of my biggest issues with C++ today. Objects that can be moved must support a "my value was moved out" state. So every access to the object usually starts with "if (have-a-value())". It also means that the destructor is called for an object that won't be used anymore.

clang-tidy has a check for this. https://clang.llvm.org/extra/clang-tidy/checks/bugprone/use-...

MSVC and the Clang static analyzer have a analysis checks for this too. Not sure about GCC.

It's worth remembering though that values can be reinitialized in C++, after move.