anchor.diff:    pname = "luadbi-postgresql";
     version = "0.7.2-1";
     knownRockspec = (fetchurl {
  -    url    = "https://raw.githubusercontent.com/rocks-moonscript-org/moonrocks-mirror/master/luadbi-postgresql-0.7.2-1.rockspec";
  +    url    = "https://luarocks.org/luadbi-postgresql-0.7.2-1.rockspec";
       sha256 = "07rx4agw4hjyzf8157apdwfqh9s26nqndmkr3wm7v09ygjvdjiix";
     }).outPath;
     src = fetchgit ( removeAttrs (builtins.fromJSON ''{
  
positive.code:   pname = "cqueues";
    version = "20200726.52-0";
    knownRockspec = (fetchurl {
      url    = "https://luarocks.org/cqueues-20200726.52-0.rockspec";
      sha256 = "0w2kq9w0wda56k02rjmvmzccz6bc3mn70s9v7npjadh85i5zlhhp";
    }).outPath;
    src = fetchurl {
  
negative.code:   pname = "luacov";
    version = "0.15.0-1";
    knownRockspec = (fetchurl {
      url    = "https://luarocks.org/luacov-0.15.0-1.rockspec";
      sha256 = "18byfl23c73pazi60hsx0vd74hqq80mzixab76j36cyn8k4ni9db";
    }).outPath;
    src = fetchgit ( removeAttrs (builtins.fromJSON ''{
  