Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: arti 0 -> 1
attrpath: arti
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/dk3l7z7wfmvz86bg2cjcd8k7pxwimg2y-packages.json.drv
building '/nix/store/dk3l7z7wfmvz86bg2cjcd8k7pxwimg2y-packages.json.drv'...

Going to be running update for following packages:
 - arti-2.4.0

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - arti-2.4.0: UPDATING ...
 - arti-2.4.0: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/ar/arti/package.nix b/pkgs/by-name/ar/arti/package.nix
index e01cc45f7814..61c7844be78d 100644
--- a/pkgs/by-name/ar/arti/package.nix
+++ b/pkgs/by-name/ar/arti/package.nix
@@ -14,7 +14,7 @@
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "arti";
-  version = "2.4.0";
+  version = "2.5.0";
 
   src = fetchFromGitLab {
     domain = "gitlab.torproject.org";
@@ -22,7 +22,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
     owner = "core";
     repo = "arti";
     tag = "arti-v${finalAttrs.version}";
-    hash = "sha256-YLOdrHstmN2pLl75uclkbpN5h3iBs3xpraZ8XN6R/+Q=";
+    hash = "sha256-jOCFXlBI2xAzgpb7Fa8ap53SpDF6kcRGYnBXcu3vpk4=";
   };
 
   patches = [
@@ -44,7 +44,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
   '';
 
   buildAndTestSubdir = "crates/arti";
-  cargoHash = "sha256-7X3JJbt0/jxaMvBR3XQvguR7tqd96kiqX66G2byvPjM=";
+  cargoHash = "sha256-JK6ubp697jZ98ErNrZdFe0mXIez3lUZ5SmAHkyD97WQ=";
 
   nativeBuildInputs = lib.optionals stdenv.hostPlatform.isLinux [ pkg-config ];
 

No auto update branch exists
There might already be an open PR for this update:
- arti: 2.4.0 -> 2.5.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/537280"