Can you please take a look at the build failure?

The change itself looks reasonable. For my understanding, what is the background for this?

Fixed the rustlib vs rust_lib issue.

The background is the work I am doing in Bazel on platforms and toolchains. This is a pre-requsite to adding a rust_toolchain rule and having that be used with Bazel.

The actual toolchain part will have to wait for several releases until the feature is released, but I am using this as a test case (see https://github.com/katre/rules_rust/tree/02-rust-toolchain-rule for the rust_toolchain rule itself).

Understood. Thanks!

This broke a whole bunch of documentation, because this no longer works:

load("@io_bazel_rules_rust//rust:rust.bzl", "rust_repositories")

I would recommend simply loading rust_repositories into rust.bzl for backwards-compatibility.

This has been merged since April. I'll send a PR to update the documentation.