For me Rust is a deja vu experience, in a certain sense.
I started to use C++ around 1992, on MS-DOS, as my next loved programming language after Turbo Pascal. Never saw any value in plain C, other than writing code unsafer as straight Assembly (Assembly has less UB than C).
Have taken part in C vs C++ flamewars on Usenet since those days, only to see C++ finally overtaking C in many fields in the last 10 years.
In some fields, like embedded programming, C still reigns over C++.
So while I look forward to have my managed languages, OSes and performance critical libraries written in a safer language, my life experience tells me it will take a few decades to achieve the same level of market adoption.