anchor.diff:  , installShellFiles
   , makeWrapper
   , fuse-overlayfs
  -, nixosTests
   }:
   
   buildGoModule rec {
     pname = "skopeo";
  -  version = "1.1.1";
  +  version = "1.2.0";
   
     src = fetchFromGitHub {
       rev = "v${version}";
       owner = "containers";
       repo = "skopeo";
  -    sha256 = "0wkpw8fizxjpfypflp7rs1q128dg4hadwzdvn8k41h7f8cbcb39x";
  +    sha256 = "1v7k3ki10i6082r7zswblyirx6zck674y6bw3plssw4p1l2611rd";
     };
   
     outputs = [ "out" "man" ];
  
positive.code: { stdenv
  , buildGoModule
  , fetchFromGitHub
  , runCommand
  , gpgme
  , lvm2
  , btrfs-progs
  
negative.code: 
    buildPhase = ''
      patchShebangs .
      make bin/skopeo docs
    '';
  
    installPhase = ''
      install -Dm755 bin/skopeo -t $out/bin
      installManPage docs/*.[1-9]
      installShellCompletion --bash completions/bash/skopeo
    '';
  
  