Running nixpkgs-update (https://github.com/NixOS/infra/blob/main/non-critical-infra/modules/nixpkgs-update/README.md) with UPDATE_INFO: btrbk 0 -> 1
attrpath: btrbk
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] these 2 derivations will be built:
  /nix/store/57spz554y9w5l0fb3r4ydmzkpz9n3l58-btrbk-versionLister.drv
  /nix/store/1r6binf80nviskkb7k1bw8a68q2v8r0g-packages.json.drv
building '/nix/store/57spz554y9w5l0fb3r4ydmzkpz9n3l58-btrbk-versionLister.drv'...
building '/nix/store/1r6binf80nviskkb7k1bw8a68q2v8r0g-packages.json.drv'...

Going to be running update for following packages:
 - btrbk-0.32.7

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - btrbk-0.32.7: UPDATING ...
 - btrbk-0.32.7: DONE.

Packages updated!

The diff was empty after rewrites.