anchor.diff:    };
   
     go-multierror = buildFromGitHub {
  -    version = 2;
  -    date = "2016-12-16";
  -    rev = "ed905158d87462226a13fe39ddf685ea65f1c11f";
  +    version = 3;
  +    date = "2017-06-22";
  +    rev = "83588e72410abfbe4df460eeb6f30841ae47d4c4";
       owner  = "hashicorp";
       repo   = "go-multierror";
  -    sha256 = "1lvmjf3mb1qx295djzddzj8w1j86c0cklkg19kfmzr5cbk257rzc";
  +    sha256 = "0j2wkfr596av3ba1vd7bxqjvbipbh6p23b22afrfncpfq7hgqvh4";
       propagatedBuildInputs = [
         errwrap
       ];
  
positive.code: 
    azure-sdk-for-go = buildFromGitHub {
      version = 3;
      date = "2017-06-14";
      rev = "720c2a183bcccbe8a90f3159b63e1e2e5d4c9911";
      owner  = "Azure";
      repo   = "azure-sdk-for-go";
      sha256 = "1xajxx89nakqqalkyaj9dzfajaksbxw9d6rb7hjrbrpmiahm6i99";
      excludedPackages = "\\(Gododir\\|storageimportexport\\)";
      buildInputs = [
        crypto
  
negative.code:     version = 3;
      owner = "coreos";
      repo = "etcd";
      rev = "v3.2.1";
      sha256 = "0fx58qsfh588rj825gcdz8xz94iwl8ia6dpm34jnsgiawc82mics";
      buildInputs = [
        bolt
        btree
  