anchor.diff:      owner  = "mitchellh";
       repo   = "reflectwalk";
       sha256 = "1xpgzn3rgc222yz09nmn1h8xi2769x3b5cmb23wch0w43cj8inkz";
  +  };
  +
  +  regexp2 = buildFromGitHub {
  +    version = 3;
  +    rev = "v1.1.6";
  +    owner  = "dlclark";
  +    repo   = "regexp2";
  +    sha256 = "1z44159gfiv99p32qgypwflix4krk88mnx1n5h94gy2sqhh07gi0";
     };
   
     resumable = buildFromGitHub {
  
positive.code:       amber
        blackfriday
        cast
        cobra
        cssmin
        emoji
  
negative.code:       "connectivity"
        "credentials"
        "grpclb/grpc_lb_v1"
        "grpclog"
        "internal"
        "keepalive"
  