update ci

[danieleades]

No description provided.

[TieWay59]

Donno much about dtolnay/rust-toolchain can you tell us some reason?

[tomhoule]

actions-rs/toolchain is not maintained and depends on node, while dtolnay/rust-toolchain is bash and maintained, so I support the move.

[TieWay59]

I understand dtolnay/rust-toolchain now.

BTW replacing .get(0) is not related to your ci change right? Maybe you need to address it in the PR body or split it in another PR?

Edit: I understand it's definitely correct & trivial for running the code. But it's a little inconvenient for review when you said A but also done B. People would be confused about whether it's intended.

[danieleades]

I understand dtolnay/rust-toolchain now.

BTW replacing .get(0) is not related to your ci change right? Maybe you need to address it in the PR body or split it in another PR?

Edit: I understand it's definitely correct & trivial for running the code. But it's a little inconvenient for review when you said A but also done B. People would be confused about whether it's intended.

The change is intentional, because without it the CI jobs for this PR will fail

[tomhoule]

Let's try this.