Nelson: rust-lang/rust is adopting an LLM policy

No one except the author is required to read LLM output unless they
choose to: LLM output isn't allowed in public docs, PR
descriptions, or Github comments unless it's clearly marked;
reviewers aren't required to look at LLM PRs if they don't want to.

No one is required to use LLMs to contribute to rust-lang/rust:
policies must be written first for humans, and only summarized for
machines; LLM reviews cannot substitute for human review or
self-review.

You are allowed to generate LLM content that only you see, without
disclosure, as long as you do not post it anywhere that you expect
us to read or review.