anchor.diff:      owner = "containerd";
       repo = "containerd";
       rev = "v${version}";
  -    sha256 = "sha256-VV1cxA8tDRiPDxKV8OGu3T7sgutmyL+VPNqTeFcVjJA=";
  +    sha256 = "sha256-6mDTTXHpXBcKOcT+VrGgt6HJzvTeKgJ0ItJ+IjCTJxk=";
     };
   
     vendorSha256 = null;
  
positive.code:   BUILDTAGS = lib.optionals (btrfs-progs == null) [ "no_btrfs" ];
  
    buildPhase = ''
      patchShebangs .
      make binaries man $buildFlags
    '';
  
    installPhase = ''
      install -Dm555 bin/* -t $out/bin
      installManPage man/*.[1-9]
      installShellCompletion --bash contrib/autocomplete/ctr
      installShellCompletion --zsh --name _ctr contrib/autocomplete/zsh_autocomplete
    '';
  
    passthru.tests = { inherit (nixosTests) docker; };
  
negative.code: 
  buildGoModule rec {
    pname = "containerd";
    version = "1.5.5";
  
    outputs = [ "out" "man" ];
  
  