As a C++ enthusiast, I wouldn't use the words "throw knowledge". All the concepts you can find in Rust are almost matching one to one to a C++14 equivalent (albeit pattern matching for instance). The difference being the enforcement of these good practices by the compiler. It would most likely take me 2 days to read the latest rust doc and 1 month of practice to be proficient.

Thing is, it's a bit like switching from Python 2 to Python 3. Why would I move to this new environment where I would need to recode everything from scratch? Python 3 will take decades to overthrow its predecessor, how long will it be for Rust? Will it ever succeed? Will the C++ committee react and borrow some of Rust awesomeness? Can I find co-workers willing to learn Rust?