anchor.diff:      sha256 = "0b8mhr1nv70pflh1z87x2ck0wj2y2k7pwvj6pvag5pfdamr1kvim";
   
       buildInputs = [
  -      net circbuf armon.go-metrics ugorji.go go-syslog logutils mdns memberlist
  +      net circbuf armon_go-metrics ugorji.go go-syslog logutils mdns memberlist
         dns cli mapstructure columnize
       ];
     };
  
positive.code:     buildInputs = [ go-immutable-radix ];
    };
  
    rcrowley.go-metrics = buildFromGitHub {
      rev = "7839c01b09d2b1d7068034e5fe6e423f6ac5be22";
      date = "2015-11-29";
      owner = "rcrowley";
  
negative.code:     '';
  
      buildInputs = [
        git log4go websocket go-vhost mousetrap termbox-go rcrowley_go-metrics
        yaml-v1 go-bindata.bin go-update-v0 binarydist osext
      ];
  
  