box2d 2.3.1 -> 2.4.1 https://github.com/erincatto/box2d/releases attrpath: box2d Received ExitFailure 1 when running Raw command: /nix/store/3nqhcyc7vid1npgcd0m7arg5sn325nhz-nix-2.12.0/bin/nix eval -f . "(let pkgs = import ./. {}; in builtins.hasAttr \"updateScript\" pkgs.box2d)" Standard error: error: attribute '(let pkgs = import ' in selection path '(let pkgs = import ./. {}; in builtins.hasAttr "updateScript" pkgs.box2d)' not found