Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: fabs 1.1 -> 1.2 https://github.com/openafs-contrib/fabs/releases
attrpath: fabs
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/25f859xbvw359280z0yprfg5xvs9v4bp-packages.json.drv
building '/nix/store/25f859xbvw359280z0yprfg5xvs9v4bp-packages.json.drv'...

Going to be running update for following packages:
 - fabs-1.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - fabs-1.1: UPDATING ...
 - fabs-1.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/fa/fabs/package.nix b/pkgs/by-name/fa/fabs/package.nix
index dd314063a0ca..d1007ac7a254 100644
--- a/pkgs/by-name/fa/fabs/package.nix
+++ b/pkgs/by-name/fa/fabs/package.nix
@@ -8,14 +8,14 @@
 
 python3.pkgs.buildPythonApplication rec {
   pname = "fabs";
-  version = "1.1";
+  version = "1.2";
   format = "setuptools";
 
   src = fetchFromGitHub {
     owner = "openafs-contrib";
     repo = "fabs";
     rev = "v${version}";
-    hash = "sha256-ejAcCwrOWGX0zsMw224f9GTWlozNYC0gU6LdTk0XqH0=";
+    hash = "sha256-whg///KiQ8CCraddNlVo+1S5EN6v3IyM+SVJweKSY/w=";
   };
 
   nativeBuildInputs = [

No auto update branch exists
Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A fabs
Received ExitFailure 1 when running
Raw command: nix --extra-experimental-features nix-command log -f . fabs --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]"
Standard output:

error:
       … while evaluating the attribute 'drvPath'
         at /var/cache/nixpkgs-update/worker/worktree/fabs/lib/customisation.nix:446:7:
          445|     // {
          446|       drvPath =
             |       ^
          447|         assert condition;

       … in the condition of the assert statement
         at /var/cache/nixpkgs-update/worker/worktree/fabs/lib/customisation.nix:447:9:
          446|       drvPath =
          447|         assert condition;
             |         ^
          448|         drv.drvPath;

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Package ‘fabs-1.2’ in /var/cache/nixpkgs-update/worker/worktree/fabs/pkgs/by-name/fa/fabs/package.nix:64 is marked as broken, refusing to evaluate.

       a) To temporarily allow broken packages, you can use an environment variable
          for a single invocation of the nix tools.

            $ export NIXPKGS_ALLOW_BROKEN=1

          Note: When using `nix shell`, `nix build`, `nix develop`, etc with a flake,
                then pass `--impure` in order to allow use of environment variables.

       b) For `nixos-rebuild` you can set
         { nixpkgs.config.allowBroken = true; }
       in configuration.nix to override this.

       c) For `nix-env`, `nix-build`, `nix-shell` or any other Nix command you can add
         { allowBroken = true; }
       to ~/.config/nixpkgs/config.nix.