Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: fnox 1.31.1 -> 1.33.1 https://github.com/jdx/fnox/releases
attrpath: fnox
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[rustCrateVersion] 
[rustCrateVersion] skipping because derivation has updateScript
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/n1df8akfy2vs7wvrc549mkcv2qq7ny63-packages.json.drv
building '/nix/store/n1df8akfy2vs7wvrc549mkcv2qq7ny63-packages.json.drv'...

Going to be running update for following packages:
 - fnox-1.31.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - fnox-1.31.1: UPDATING ...
 - fnox-1.31.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/fn/fnox/package.nix b/pkgs/by-name/fn/fnox/package.nix
index a7e4fb4e38c7..616ca5358c51 100644
--- a/pkgs/by-name/fn/fnox/package.nix
+++ b/pkgs/by-name/fn/fnox/package.nix
@@ -14,16 +14,16 @@
 rustPlatform.buildRustPackage (finalAttrs: {
   __structuredAttrs = true;
   pname = "fnox";
-  version = "1.31.1";
+  version = "1.33.1";
 
   src = fetchFromGitHub {
     owner = "jdx";
     repo = "fnox";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-PAzXu+fltWJXn30RVRUfjCiUUFnt4mb/yeyxM5wCtG8=";
+    hash = "sha256-D5ILvQPP4HQumTjI6efLhUmM5GayqVQz4HKkLw6TIGs=";
   };
 
-  cargoHash = "sha256-ImD2PEtoTW1ktNpSzGO0ENyXQ/A4f0ydHqZhSIgNroE=";
+  cargoHash = "sha256-i6x3CKBYAAsIcg2Dhaz//I3gaQYnFu4RwhNE7DlI9Pg=";
 
   nativeBuildInputs = [
     perl

No auto update branch exists
There might already be an open PR for this update:
- fnox: 1.31.1 -> 1.33.1
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/553941"