Oh, come on. Rust started as an open-source project in 2010 (with the release of the preliminary design and OCaml compiler that Graydon had written as a hobby project). At that time, work started on the self-hosting compiler, leading to its initial 0.1 release eight months ago, and proceeding with releases every few months and steady progress toward the remaining goals on the 1.0 roadmap [1]. Just because Go was developed earlier doesn't mean that Rust isn't getting done. And it's not noticeably more complex than it was in the initial design; in some ways it's simpler.
(By contrast, Perl 6 has been in development for over a decade, with a half-dozen implementations in various stages of completion.)
(By contrast, Perl 6 has been in development for over a decade, with a half-dozen implementations in various stages of completion.)
[1] https://github.com/mozilla/rust/wiki/Note-development-roadma...