A resource for those trying to install nightly on OSX is the page tracking component status for nightly builds: https://rust-lang.github.io/rustup-components-hi

A resource for those trying to install nightly on OSX is the page tracking component status for nightly builds: https://rust-lang.github.io/rustup-components-history/x86_64-apple-darwin.html https://rust-lang.github.io/rustup-components-history/x86_64... (the page also contains links to the status of components for all other platforms) Unfortunately both Clippy and RLS have failed to build since 3/24 but 2019-03-23 should work. rustup install nightly-2019-03-23