Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: cppitertools 2.1 -> 2.3 https://github.com/ryanhaining/cppitertools/releases
attrpath: cppitertools
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/cp/cppitertools/package.nix b/pkgs/by-name/cp/cppitertools/package.nix
index 90a73ff7f9d9..2fca9168d780 100644
--- a/pkgs/by-name/cp/cppitertools/package.nix
+++ b/pkgs/by-name/cp/cppitertools/package.nix
@@ -9,13 +9,13 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "cppitertools";
-  version = "2.1";
+  version = "2.3";
 
   src = fetchFromGitHub {
     owner = "ryanhaining";
     repo = "cppitertools";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-mii4xjxF1YC3H/TuO/o4cEz8bx2ko6U0eufqNVw5LNA=";
+    hash = "sha256-1lHpy+9e17lP/58EEIzrmyBwbmMD665ypDJtkSFrN9E=";
   };
 
   __structuredAttrs = true;

Received ExitFailure 1 when running
Raw command: nix-build --option sandbox true --arg config "{ allowUnfree = true; allowAliases = false; }" --arg overlays "[ ]" -A cppitertools
nix build failed.
got build log for 'cppitertools' from 'daemon'
structuredAttrs is enabled
Running phase: unpackPhase
@nix { "action": "setPhase", "phase": "unpackPhase" }
unpacking source archive /nix/store/9shsyyrrg8xdwbic3yxjkyc6zyrp6vrl-source
source root is source
Running phase: patchPhase
@nix { "action": "setPhase", "phase": "patchPhase" }
substituteStream() in derivation cppitertools-2.3: ERROR: pattern \ \ DIRECTORY\ . doesn't match anything in file 'CMakeLists.txt'