November 2023 - Rust Nightly Update (#413)

* Update nightly

* Replace .get(0) with .first()

* allow new clippy lint

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Co-authored-by: GitHub Actions <>
Co-authored-by: Luke Parker <lukeparker5132@gmail.com>

tests/coordinator/src/tests/mod.rs

@@ -13,6 +13,7 @@ mod batch;
 pub use batch::batch;
 
 mod sign;
+#[allow(unused_imports)]
 pub use sign::sign;
 
 pub(crate) const COORDINATORS: usize = 4;