If you've never used Rust before, I couldn't find good documentation on how to run a existing Rust project nor could I find `cargo install` on the "Getting Started" page. I could read the Cargo Book, or check `--help` I guess, but this can be surprisingly time consuming as well, it might take 5-30 minutes of active searching to locate the information. If you can, try put yourself in a beginner's mindset and think though your argument again.
Regarding your second point, I think people actually underutilise LLMs for simple tasks. Delegating these tasks frees up your problem-solving skills for challenges that truly need human insight. In this case, asking an LLM is arguably the smart choice: it's a common task in training data, easy to verify, and low-risk to run and not a direct learning or benefit for your initial question.