Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: cudaPackages.nccl-tests 0 -> 1
attrpath: cudaPackages.nccl-tests
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/4jfkqa8lq0bi9l3ajz2ykaf14q9dc2nd-packages.json.drv
building '/nix/store/4jfkqa8lq0bi9l3ajz2ykaf14q9dc2nd-packages.json.drv'...

Going to be running update for following packages:
 - cuda12.9-nccl-tests-2.19.1

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - cuda12.9-nccl-tests-2.19.1: UPDATING ...
 - cuda12.9-nccl-tests-2.19.1: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/development/cuda-modules/packages/nccl-tests.nix b/pkgs/development/cuda-modules/packages/nccl-tests.nix
index 732a0242c400..936a52140931 100644
--- a/pkgs/development/cuda-modules/packages/nccl-tests.nix
+++ b/pkgs/development/cuda-modules/packages/nccl-tests.nix
@@ -30,13 +30,13 @@ backendStdenv.mkDerivation (finalAttrs: {
   # NOTE: Depends on the CUDA package set, so use cudaNamePrefix.
   name = "${cudaNamePrefix}-${finalAttrs.pname}-${finalAttrs.version}";
   pname = "nccl-tests";
-  version = "2.19.1";
+  version = "2.19.6";
 
   src = fetchFromGitHub {
     owner = "NVIDIA";
     repo = "nccl-tests";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-eRwIl646ndISFttjG5nPqsXfPVmInABNIsphhh5I0wM=";
+    hash = "sha256-Dvqg5wRI/1ehZdLje5i7Yz0lhGdILUSIsEK7k9Cl46Q=";
   };
 
   postPatch = ''

An auto update branch exists with message `cudaPackages.nccl-tests: 2.19.1 -> 2.19.6`. New version is 2.19.6.
An auto update branch exists with an equal or greater version