Running nixpkgs-update (https://github.com/NixOS/infra/blob/main/non-critical-infra/modules/nixpkgs-update/README.md) with UPDATE_INFO: chameleonultragui 1.3 -> 1.4 https://github.com/GameTec-live/ChameleonUltraGUI/releases
attrpath: chameleonultragui
Checking auto update branch...
No auto update branch exists
[version] 
[version] updated version and sha256
[rustCrateVersion] 
[rustCrateVersion] No cargoHash found
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] skipping because derivation has no updateScript
Diff after rewrites:
diff --git a/pkgs/by-name/ch/chameleonultragui/package.nix b/pkgs/by-name/ch/chameleonultragui/package.nix
index 9d2a46f56536..408c97e35418 100644
--- a/pkgs/by-name/ch/chameleonultragui/package.nix
+++ b/pkgs/by-name/ch/chameleonultragui/package.nix
@@ -9,13 +9,13 @@
 
 flutter335.buildFlutterApplication rec {
   pname = "chameleonultragui";
-  version = "1.3";
+  version = "1.4";
 
   src = fetchFromGitHub {
     owner = "GameTec-live";
     repo = "ChameleonUltraGUI";
     tag = version;
-    hash = "sha256-9Hwjx1nt/QD520eLMAB5xyFjOGfjZSwS83ARNn8GsFo=";
+    hash = "sha256-4TgnHnymipSaC0Gi4tmWwNrXGyfWG5alNaqBbr6nw7Y=";
   };
 
   sourceRoot = "${src.name}/chameleonultragui";

Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A chameleonultragui
Received ExitFailure 1 when running
Raw command: nix --extra-experimental-features nix-command log -f . chameleonultragui --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]"
Standard output:

error: build log of 'chameleonultragui' is not available