make oizys versions one level deeper

lib/default.nix

@@ -32,8 +32,8 @@ in rec {
   oizysHosts = mapAttrs (name: _: mkSystem name) (readDir ../hosts);
   oizysPkg = forAllSystems (
     pkgs: rec {
-      oizys-nim = pkgs.callPackage ../pkgs/oizys-nim {};
-      oizys = pkgs.callPackage ../pkgs/oizys-rs {};
+      oizys-nim = pkgs.callPackage ../pkgs/oizys/oizys-nim {};
+      oizys = pkgs.callPackage ../pkgs/oizys/oizys-rs {};
       default = oizys;
     }
   );

pkgs/oizys/oizys-rs/.gitignore

@@ -9,7 +9,6 @@ target/
 
 # Remove Cargo.lock from gitignore if creating an executable, leave it for libraries
 # More information here https://doc.rust-lang.org/cargo/guide/cargo-toml-vs-cargo-lock.html
-Cargo.lock
 
 # These are backup files generated by rustfmt
 **/*.rs.bk