"Specifying Rust version" recommends `rust_repositories` but `rust_repositories` docs say it's deprecated

[jfirebaugh]

https://bazelbuild.github.io/rules_rust/#specifying-rust-version recommends to use rust_repositories to build with a particular version of the Rust compiler.

However, https://bazelbuild.github.io/rules_rust/flatten.html#rust_repositories says that rust_repositories is deprecated. If it's deprecated, it shouldn't be featured on the documentation landing page.

[UebelAndre]

Ah yeah, the docs there need to be updated, but https://bazelbuild.github.io/rules_rust/flatten.html#rust_repositories is correct, you just replace rust_repositories with rules_rust_dependencies. If you have a second to open a PR I'd super appreciate it and would be happy to be your reviewer 😄

[jfirebaugh]

I can open a PR, sure. But did you mean rust_register_toolchains rather than rules_rust_dependencies? The docs for rust_register_toolchains and rules_rust_dependencies seem to be missing, but the docs for rust_repositories say that the keyword arguments get passed to rust_register_toolchains.

[UebelAndre]

It's recommended to use rules_rust_dependencies to fetch other repositories rules_rust needs to function and rust_register_toolchains to download and register toolchains for the Rust compiler.
https://github.com/bazelbuild/rules_rust/blob/0.1.0/WORKSPACE.bazel#L3-L7