anchor.diff: -{ lib, stdenv, fetchurl, jre, nixosTests, writeScript, common-updater-scripts, git
  -, nixfmt, nix, coreutils, gnused, disableRemoteLogging ? true }:
  +{ lib, stdenv, fetchurl, jre, nixosTests, writeScript, common-updater-scripts
  +, git, nixfmt, nix, coreutils, gnused, disableRemoteLogging ? true }:
   
   with lib;
   
  
positive.code: in {
    ammonite_2_12 = common {
      scalaVersion = "2.12";
      sha256 = "1kzk0437h2wd9jhwkvjkiaj6mscz4bh85iv266x9zz4zssb355hs";
    };
    ammonite_2_13 = common {
      scalaVersion = "2.13";
      sha256 = "0js84m6yqjd7d77md38z6nk3qzlm1ms8brzczaw05zq2c90pdbz7";
    };
  }
  
negative.code:   common = { scalaVersion, sha256 }:
      stdenv.mkDerivation rec {
        pname = "ammonite";
        version = "2.4.0";
  
        src = fetchurl {
          url =
  