Running nixpkgs-update (https://github.com/NixOS/infra/blob/main/non-critical-infra/modules/nixpkgs-update/README.md) with UPDATE_INFO: btrfs-assistant 0 -> 1
attrpath: btrfs-assistant
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/khqr9ga393snvig9qz3417cf0ginp8ry-packages.json.drv
building '/nix/store/khqr9ga393snvig9qz3417cf0ginp8ry-packages.json.drv'...
structuredAttrs is enabled

Going to be running update for following packages:
 - btrfs-assistant-2.3.2

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - btrfs-assistant-2.3.2: UPDATING ...
 - btrfs-assistant-2.3.2: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/bt/btrfs-assistant/package.nix b/pkgs/by-name/bt/btrfs-assistant/package.nix
index 82306e4dff3a..b2730d335b75 100644
--- a/pkgs/by-name/bt/btrfs-assistant/package.nix
+++ b/pkgs/by-name/bt/btrfs-assistant/package.nix
@@ -16,13 +16,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "btrfs-assistant";
-  version = "2.3.2";
+  version = "3.0.0";
 
   src = fetchFromGitLab {
     owner = "btrfs-assistant";
     repo = "btrfs-assistant";
     rev = finalAttrs.version;
-    hash = "sha256-dug56EbUp2Bn84MFSDN3+EWPm+e9CZm//BFNqLA65xE=";
+    hash = "sha256-FYSpsDLXmf2NBR97+M59ECmE3ClTlQCWm+mmxY8r/mw=";
   };
 
   nativeBuildInputs = [

No auto update branch exists
There might already be an open PR for this update:
- btrfs-assistant: 2.3.2 -> 3.0.0
  URL "https://api.github.com/repos/NixOS/nixpkgs/issues/582442"