Sorry, but that was not the only con. The other were that the design was unusual and it is not yet understood.
And not enough people are using it is devastating critique of a language - every piece of code written will be read by someone eventually. And you want that pool to be as big as possible.
To me it seems Google are cautiously bullish on Rust.
My worry comes from the fact that a computer system of the scale of Fuchsia comes up every couple decades.
I'd like not waste another one on C++ shortcomings and Fuchsia going with Rust was a great chance for a better dominant language in 20ties.
And not enough people are using it is devastating critique of a language - every piece of code written will be read by someone eventually. And you want that pool to be as big as possible.
To me it seems Google are cautiously bullish on Rust.