Add Rust to env

[jasonodoom]

🗣 Description

This PR adds Rust to our env so it can be consumed/used in GitHub Actions workflows. Specifically, dtolnay/rust-toolchain

💭 Motivation and context

This change is based on current team practices.

🧪 Testing

Pre-commit verified syntactical accuracy.

✅ Pre-approval checklist

• This PR has an informative and human-readable title.
• Changes are limited to a single goal - eschew scope creep!
• All relevant type-of-change labels have been added.
• I have read the CONTRIBUTING document.
• These code changes follow cisagov code standards.
• All relevant repo and/or project documentation has been updated to reflect the changes in this PR.
• All new and existing tests pass.

[dav3r]

Can you please give us more context about why Rust is needed? Do we have some pending work or PR that will utilize it? This info should be included in the "Motivation and context" section above.

[jsf9k]

Why not use the more official GH Action?

[mcdonnnj]

Looking at the repo it's very dead. The last release was in 2020.

[jsf9k]

Can you please give us more context about why Rust is needed? Do we have some pending work or PR that will utilize it? This info should be included in the "Motivation and context" section above.

I took @mcdonnnj's comment and the successful linting action in cisagov/skeleton-generic#143 to indicate that this is unnecessary.

[mcdonnnj]

Can you please give us more context about why Rust is needed? Do we have some pending work or PR that will utilize it? This info should be included in the "Motivation and context" section above.

I took @mcdonnnj's comment and the successful linting action in cisagov/skeleton-generic#143 to indicate that this is unnecessary.

Adding on to this per the runner image software list the Rust tool-chain should already be available.

[jasonodoom]

Can you please give us more context about why Rust is needed? Do we have some pending work or PR that will utilize it? This info should be included in the "Motivation and context" section above.

I took @mcdonnnj's comment and the successful linting action in cisagov/skeleton-generic#143 to indicate that this is unnecessary.

Adding on to this per the runner image software list the Rust tool-chain should already be available.

@jsf9k @mcdonnnj Aah, I didn't know this. In that case, closing.