&gt; There&#x27;s a ton of things I like about Rust but the points he outlined above are things that I&#x27;ve seen very much impede the adoption of Rust into some environments that have similar restrictions(no download on build, build from source without binaries) for security and reproducibility reasons.<p>They&#x27;re all on the roadmap for the very near future, because Servo (and Rust-in-Gecko) needs them. There&#x27;s nothing in the design of Cargo that prevents these from being solved.<p>Personally, I <i>love</i> Cargo. Autoconf is miserable and I would hate to go back to it.