I don’t think you need lifetimes for the noalias optimization, because it’s a guarantee of &mut, every single one of them, not their exact lifetimes. Also the

I don’t think you need lifetimes for the noalias optimization, because it’s a guarantee of &mut, every single one of them, not their exact lifetimes. Also the slowness is not because of lifetime checking. `cargo check` is very fast compared to `cargo build`.