Running nixpkgs-update (https://nix-community.org/update-bot/) with UPDATE_INFO: cargo-c 0.10.15 -> 0.10.19 https://github.com/lu-zero/cargo-c/releases
attrpath: cargo-c
Checking auto update branch...
[version] 
[version] generic version rewriter does not support multiple hashes
[rustCrateVersion] 
[rustCrateVersion] skipping because derivation has updateScript
[golangModuleVersion] 
[golangModuleVersion] Not a buildGoModule package with vendorHash
[npmDepsVersion] 
[npmDepsVersion] No npmDepsHash
[updateScript] 
[updateScript] Success
[updateScript] this derivation will be built:
  /nix/store/j3k0mv6k4ynf9j06hxgp9b90ml2lyahs-packages.json.drv
building '/nix/store/j3k0mv6k4ynf9j06hxgp9b90ml2lyahs-packages.json.drv'...

Going to be running update for following packages:
 - cargo-c-0.10.15

Press Enter key to continue...
Running update for:
Enqueuing group of 1 packages
 - cargo-c-0.10.15: UPDATING ...
 - cargo-c-0.10.15: DONE.

Packages updated!

Diff after rewrites:
diff --git a/pkgs/by-name/ca/cargo-c/package.nix b/pkgs/by-name/ca/cargo-c/package.nix
index 557b21f65d0e..ce4cb935bcbc 100644
--- a/pkgs/by-name/ca/cargo-c/package.nix
+++ b/pkgs/by-name/ca/cargo-c/package.nix
@@ -12,19 +12,19 @@
 
 let
   # this version may need to be updated along with package version
-  cargoVersion = "0.90.0";
+  cargoVersion = "0.93.0";
 in
 rustPlatform.buildRustPackage rec {
   pname = "cargo-c";
-  version = "0.10.15";
+  version = "0.10.19";
 
   src = fetchCrate {
     inherit pname;
     version = "${version}+cargo-${cargoVersion}";
-    hash = "sha256-szqDSHGihE+Oj8L3EBlC5XH4kSBYOptd0Xtk3MhXooQ=";
+    hash = "sha256-PrBmB+0tmU2MAUnRr+wx4g9hu0Y9i6WfR8U89bwiLVY=";
   };
 
-  cargoHash = "sha256-36ygs/EhCktG1jmBnP9c7EgnfcWnGrqqcW3qAw+Yfy4=";
+  cargoHash = "sha256-EM/vAfW/ucOfK/XmAQn9Zk75eFb7pp8uZoByKbALCyo=";
 
   nativeBuildInputs = [
     pkg-config

No auto update branch exists
Old version 0.10.15+cargo-0.90.0" not present in master derivation file with contents: {
  lib,
  rustPlatform,
  fetchCrate,
  pkg-config,
  curl,
  openssl,
  stdenv,
  libiconv,
  rav1e,
}:

let
  # this version may need to be updated along with package version
  cargoVersion = "0.90.0";
in
rustPlatform.buildRustPackage rec {
  pname = "cargo-c";
  version = "0.10.15";

  src = fetchCrate {
    inherit pname;
    version = "${version}+cargo-${cargoVersion}";
    hash = "sha256-szqDSHGihE+Oj8L3EBlC5XH4kSBYOptd0Xtk3MhXooQ=";
  };

  cargoHash = "sha256-36ygs/EhCktG1jmBnP9c7EgnfcWnGrqqcW3qAw+Yfy4=";

  nativeBuildInputs = [
    pkg-config
    (lib.getDev curl)
  ];
  buildInputs = [
    openssl
    curl
  ]
  ++ lib.optionals stdenv.hostPlatform.isDarwin [
    libiconv
  ];

  # Ensure that we are avoiding build of the curl vendored in curl-sys
  doInstallCheck = stdenv.hostPlatform.libc == "glibc";
  installCheckPhase = ''
    runHook preInstallCheck

    ldd "$out/bin/cargo-cbuild" | grep libcurl.so

    runHook postInstallCheck
  '';

  passthru = {
    tests = {
      inherit rav1e;
    };
    updateScript.command = [ ./update.sh ];
  };

  meta = {
    description = "Cargo subcommand to build and install C-ABI compatible dynamic and static libraries";
    longDescription = ''
      Cargo C-ABI helpers. A cargo applet that produces and installs a correct
      pkg-config file, a static library and a dynamic library, and a C header
      to be used by any C (and C-compatible) software.
    '';
    homepage = "https://github.com/lu-zero/cargo-c";
    changelog = "https://github.com/lu-zero/cargo-c/releases/tag/v${version}";
    license = lib.licenses.mit;
    maintainers = with lib.maintainers; [
      cpu
      matthiasbeyer
    ];
  };
}