anchor.diff:    };
   
     crypto = buildFromGitHub {
  -    rev = "5f961cd492ac9d43fc33a8ef646bae79d113fd97";
  -    date = "2016-08-10";
  +    rev = "595bbbd7f5f308415a544d3c55743c91427c8d99";
  +    date = "2016-08-11";
       owner    = "golang";
       repo     = "crypto";
  -    sha256 = "0imyv7rmxqi1sgq1h2w5mrqn8zdjrqch00j0yypxq4jxh3j4mqwq";
  +    sha256 = "1b4x3ijsbvp3rhrszgb1lrhn0ai1c3729qvpinr1ljfmfk1hsgr5";
       goPackagePath = "golang.org/x/crypto";
       goPackageAliases = [
         "code.google.com/p/go.crypto"
  
positive.code:       go-colorable
        stack
      ];
    };
  
    log = buildFromGitHub {
  
negative.code:   };
  
    ldap = buildFromGitHub {
      rev = "v2.4.1";
      owner  = "go-ldap";
      repo   = "ldap";
      sha256 = "1vgjhz2rhyfyvpmp7mgya3znivdi8z5s156nj99329yif1q6dg7j";
      goPackageAliases = [
        "github.com/nmcclain/ldap"
        "github.com/vanackere/ldap"
  