Why on earth do people trust Rust at all? Without a standardized specification there's absolutely no good reason to trust mozilla code, and there's no "correct" way to work on a more properly FOSS implementation since they're essentially just making it up as they go along.
I fear that rust will suffer a Java death, where some of the brightest engineers are conned into working on something people will come to detest later on.
From a langtheory perspective, rust is one of the most backwards, mixed up, kludgy languages to come to light recently but it's ultimately a moot point since most languages are terrible anyways once you get to know them.
C++ already works, why don't we just improve on whatever's lacking?
Rust astroturfers like pcwalton and klabnik can't wait to explain why go isn't competing with rust since they didn't opt for zero cost abstractions in some cases and instead chose to have a coherent language, but go GC is now down to under 5ms, and while I'm honestly not a fan of Google any more than mozilla, I gotta respect the visionaries behind go, the stick-to-it-iveness of the design team, and the relentless performance increases over the past couple years.
I'd rather write lisp or Julia or ruby or something fun than most other junk languages, but watching the front lines of allegedly performant languages always gives me ideas on how to make my own projects faster or more efficient.