anchor.diff:        yaml_v2
       ];
       meta.useUnstable = true;
  -    date = "2018-02-03";
  +    date = "2018-02-09";
       postPatch = ''
         rm cmd/gateway-{azure,s3}*.go
         sed -i 's,return newAzureLayer.*,break,' cmd/gateway-main.go
  
positive.code:     version = 5;
      owner = "libp2p";
      repo = "go-libp2p-crypto";
      date = "2017-12-31";
      rev = "17e6ae06685ed9e7494c8d5c0cbd0fc423eb2d69";
      sha256 = "0w1r1lzh5fydf5lkd62bl3lifacx4x27qiff1335liwhgnvpdgsl";
      propagatedBuildInputs = [
        btcd
        ed25519
  
negative.code:       ratelimit
      ];
      meta.useUnstable = true;
      date = "2018-02-07";
    };
  
    ldap = buildFromGitHub {
  