anchor.diff:      splitString
       tail;
   
  -  version = "3.20.1";
  +  version = "3.21.0";
     releaseYear = "2017";
     versionList = splitString "." version;
     version' = "${head versionList}${fixedWidthString 2 "0" (head (tail versionList))}"
  
positive.code:   passthru = {
      srcVerification = fetchurl {
        failEarly = true;
        sha1Confirm = "48593dcd19473f25fe6fcd08048e13ddbff4c983";
        inherit (src) urls outputHash outputHashAlgo;
      };
    };
  
negative.code: 
    src = fetchurl {
      url = "https://sqlite.org/${releaseYear}/sqlite-autoconf-${version'}.tar.gz";
      multihash = "QmYWEZQ7cGWJH8MMatmyi9Cqn5EYspWZ6LULtHeGReQLhZ";
      hashOutput = false;
      sha256 = "d7dd516775005ad87a57f428b6f86afd206cb341722927f104d3f0cf65fbbbe3";
    };
  
    buildInputs = [
  