anchor.diff:  
     # https://github.com/haskell-servant/servant-ekg/issues/15
     servant-ekg = doJailbreak super.servant-ekg;
  -
  -  # krank-0.1.0 does not accept PyF-0.9.0.0.
  -  krank = doJailbreak super.krank;
   
     # the test suite has an overly tight restriction on doctest
     # See https://github.com/ekmett/perhaps/pull/5
  
positive.code:   # });
    libnix = dontCheck super.libnix;
  
    # 2020-06-23: NOTE: > 0.33 => rm 464.patch: https://github.com/jaor/xmobar/issues/466
    # dontCheck: The test suite tries to mess with ALSA, which doesn't work in the build sandbox.
    xmobar = appendPatch (dontCheck super.xmobar) (pkgs.fetchpatch {
      url = "https://github.com/jaor/xmobar/pull/464.patch";
      sha256 = "0y1dd878yzy1cx0cjj0ijd3dmywr7jdmk68vxdjimxzblrdw1al6";
    });
  
    # https://github.com/mgajda/json-autotype/issues/25
    json-autotype = dontCheck super.json-autotype;
  
negative.code:       url    = "https://github.com/redelmann/scat/pull/6.diff";
        sha256 = "07nj2p0kg05livhgp1hkkdph0j0a6lb216f8x348qjasy0lzbfhl";
      })];
    });
  
    # 2020-06-05: HACK: In Nixpkgs currently this is
  