Rust 1.67 was announced[0]. Update the necessary files for running
1.67 and fix the clippy suggestions for string interpolation.
[0]: https://blog.rust-lang.org/2023/01/26/Rust-1.67.0.html
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
To match the new toolchain update, run `niv update` to get the latest
rust-1.66.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
X-Clacks-Overhead: GNU Terry Pratchett
Adds nix tooling to allow people to develop using nix dependencies.
Uses niv to pin nixpkgs, rust-overlay, and niv itself.
This will give Rust tooling that is up to date with rustc-1.64.0.
Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>
Fintan Halpenny