anchor.diff:    };
   
     mow-cli = buildFromGitHub {
  -    version = 2;
  -    rev = "d3ffbc2f98b83e09dc8efd55ecec75eb5fd656ec";
  +    version = 3;
  +    rev = "8327d12beb75e6471b7f045588acc318d1147146";
       owner  = "jawher";
       repo   = "mow.cli";
  -    sha256 = "1mji6248gv5i61qg1dsbcf1ijy9ajf16x3lv0b8f3jvvb495m8ms";
  -    date = "2017-02-20";
  +    sha256 = "1sa1jz0khizmqcnsi2yp058n6hb4448y673n75cl1a4a4wjwmqi2";
  +    date = "2017-04-30";
     };
   
     ns1-go_v2 = buildFromGitHub {
  -    version = 2;
  -    rev = "2abc76c60bf88ba33b15d1d87a13f624d8dff956";
  +    version = 3;
  +    rev = "c563826f4cbef9c11bebeb9f20a3f7afe9c1e2f4";
       owner  = "ns1";
       repo   = "ns1-go";
  -    sha256 = "00c4s5jmiz12b3wqr3vwbc3k4akdw27nwrmczzs2hvsknlg5dxlp";
  +    sha256 = "0i1xmx6aw69749m5dy1i97xhhga7zp3sfk4wiflkmdkah2670in2";
       goPackagePath = "gopkg.in/ns1/ns1-go.v2";
  -    date = "2017-03-22";
  +    date = "2017-05-02";
     };
   
     msgp = buildFromGitHub {
  
positive.code: 
    go-couchbase = buildFromGitHub {
      version = 3;
      rev = "3afeb0b8ec4f3357080b2e0bc86a9817afa8a709";
      owner  = "couchbase";
      repo   = "go-couchbase";
      sha256 = "0xxv4bfib2jirdnsc4ca9akayl9gbg231nc41qm99hdfbg161m0b";
      date = "2017-04-29";
      goPackageAliases = [
        "github.com/couchbaselabs/go-couchbase"
      ];
  
negative.code:     version = 3;
      owner = "spf13";
      repo = "pflag";
      rev = "c990990ab4981d84da820b7b00c85139ca150b5f";
      date = "2017-05-02";
      sha256 = "093c90hph0id7byxj8dxmas4m85nfk5rkp9044jmb5lnlic79cbi";
    };
  
    pkcs7 = buildFromGitHub {
  