Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: font-util 0 -> 1
attrpath: font-util
Checking auto update branch...
[version] 
[version] skipping because derivation has updateScript
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/jfdrwyzswfyqywd2j46ghfy54s5nm0kj-packages.json.drv
building '/nix/store/jfdrwyzswfyqywd2j46ghfy54s5nm0kj-packages.json.drv'...

Going to be running update for following packages:
 - font-util-1.4.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - font-util-1.4.1: UPDATING ...
 - font-util-1.4.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/fo/font-util/package.nix b/pkgs/by-name/fo/font-util/package.nix
index f21ee7bc2091..7c83cf5cdca1 100644
--- a/pkgs/by-name/fo/font-util/package.nix
+++ b/pkgs/by-name/fo/font-util/package.nix
@@ -10,7 +10,7 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "font-util";
-  version = "1.4.1";
+  version = "1.4.2";
 
   src = fetchFromGitLab {
     domain = "gitlab.freedesktop.org";
@@ -18,7 +18,7 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "font";
     repo = "util";
     tag = "font-util-${finalAttrs.version}";
-    hash = "sha256-cv6Whex1s4+J7Ue4IOHdO9WtrarTgSpLEghWpbUl+0o=";
+    hash = "sha256-tB6A5ezfHwzhL3HsWPZjX3/d53Zkm4hBFbxOnTUgNZc=";
   };
 
   nativeBuildInputs = [

No auto update branch exists
Old version 1.4.1" not present in staging derivation file with contents: {
  lib,
  stdenv,
  fetchFromGitLab,
  testers,
  gitUpdater,
  autoreconfHook,
  util-macros,
}:

stdenv.mkDerivation (finalAttrs: {
  pname = "font-util";
  version = "1.4.2";

  src = fetchFromGitLab {
    domain = "gitlab.freedesktop.org";
    group = "xorg";
    owner = "font";
    repo = "util";
    tag = "font-util-${finalAttrs.version}";
    hash = "sha256-tB6A5ezfHwzhL3HsWPZjX3/d53Zkm4hBFbxOnTUgNZc=";
  };

  nativeBuildInputs = [
    autoreconfHook
    util-macros
  ];

  passthru = {
    updateScript = gitUpdater {
      rev-prefix = "font-util-";
      ignoredVersions = "1_0_1";
    };
    tests.pkg-config = testers.testMetaPkgConfig finalAttrs.finalPackage;
  };

  meta = {
    description = "X.Org font package creation/installation utilities";
    homepage = "https://gitlab.freedesktop.org/xorg/font/util";
    license = with lib.licenses; [
      mit
      bsd2
      bsdSourceCode
      mitOpenGroup
      # there is a bit of a diff, but i think its close enough
      # it was probably just adapted a bit to fit to the repository structure
      # or its an older version that the one on spdx
      unicodeTOU
    ];
    maintainers = [ ];
    pkgConfigModules = [ "fontutil" ];
    platforms = lib.platforms.unix;
  };
})