Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: bulletty 0.2.2 -> 0.3.0 https://github.com/CrociDB/bulletty/releases
attrpath: bulletty
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/cwccy7ik50vqgs7kwjrgxhvg62zzjq23-packages.json.drv
building '/nix/store/cwccy7ik50vqgs7kwjrgxhvg62zzjq23-packages.json.drv'...

Going to be running update for following packages:
 - bulletty-0.2.2

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - bulletty-0.2.2: UPDATING ...
 - bulletty-0.2.2: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/bu/bulletty/package.nix b/pkgs/by-name/bu/bulletty/package.nix
index 97ccb2722f0c..e0e251fc02dc 100644
--- a/pkgs/by-name/bu/bulletty/package.nix
+++ b/pkgs/by-name/bu/bulletty/package.nix
@@ -10,13 +10,13 @@
 
 rustPlatform.buildRustPackage (finalAttrs: {
   pname = "bulletty";
-  version = "0.2.2";
+  version = "0.3.0";
 
   src = fetchFromGitHub {
     owner = "CrociDB";
     repo = "bulletty";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-Keo7Xl8dU5ZnUxXilf93qVv0tjx5O2JfWU1obzrprxo=";
+    hash = "sha256-ZuNug06zL89D7EWh6UFLiT/Xs/bQOEKY/UiDdkU091M=";
   };
 
   patches = [
@@ -24,7 +24,7 @@ rustPlatform.buildRustPackage (finalAttrs: {
     ./remove-rustfmt-exec.patch
   ];
 
-  cargoHash = "sha256-bwQcmA0/wQmwEobhDkDCi5s3MgxxCi0I4m2yuQ2/XZo=";
+  cargoHash = "sha256-fOuUBp5ij0ZqcRhhEIl3pAinsheIHF9VW9Uw3RB4pCI=";
 
   nativeBuildInputs = [ pkg-config ];
 

No auto update branch exists
There might already be an open PR for this update:
- bulletty: 0.2.2 -> 0.3.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/552508"