Enjoyed the article.
Am I out of touch or have the article linked to a PR of the rust-lang eco system that didn’t go through a CR, is this really the standard for such a large language standard library?
If you look at https://github.com/rust-lang/bors it's not a standard library package, it's a tool to support the Rust development process. And the person who opened and landed that PR is the lead developer of that project.
Skipping a code review from someone else feels OK to me for that.
The rust-lang/rust repository has higher scrutiny (in part driven by tools like bors, the subject of the article).