&gt; 80% of Crates.io runs on stable, it really depends on exactly what you&#x27;re doing.<p>While this is probably factually true -- I&#x27;ve had quite the opposite experience. :(<p>- I want to write benchmarks for my code, but I need `#[feature(test)]` AKA nightly.<p>- I want to [format my Rust code](<a href="https:&#x2F;&#x2F;github.com&#x2F;nrc&#x2F;rustfmt" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;nrc&#x2F;rustfmt</a>), but I need nightly.<p>- I want to use Huon Wilson&#x27;s SIMD crate, which requires nightly.<p>I&#x27;m not saying these things should be stable right now, but I am saying if you try to use Rust right now you _will_ encounter a lot of stuff marked as unstable and&#x2F;or only usable on nightly due to XYZ. I still think Rust is amazing and everyone should give it a shot though, but it&#x27;s not as stable&#x2F;polished experience as I think it will be in say a year from now. The language is stable, but the ecosystem just isn&#x27;t yet.<p>P.S. You&#x27;ve helped me personally all too much over the Rust IRC channel, so thank you a million times for that! :)