Rust is neat. Great for hobby stuff. But it hasn't even reached 1.0, and I highly doubt you're going to get enterprises to bet their infrastructure on it.
You could have made that remark at some point in time about any open source technology that eventually got lots of enterprises to bet their infrastructure on it so by that standard Rust will do just fine. Of course there is no telling what the future holds for Rust and other novel pieces of open source code but I would not dismiss them out of hand this easily. See: Linux, Apache, PHP, Ruby, MySql, Postgres, GCC and tons of other very successful open source projects that at some date in the past were pre 1.0, fragile and buggy.
Yeah certainly not yet, but some enterprises bet their infrastructure on C++, and I think Rust has a real chance of being competitive in that arena in the long run.
Yes, but Rust is on the final stretch to 1.0 with a finite set of features to be implemented before release. So soon we can get enterprise to look at it.
For serious stuff that you need right now there is C++.