rustPlatform: run cargoDepsHook inside cargoSetupPostUnpackHook

Author: ShamrockLee

pkgs/build-support/rust/build-rust-package/default.nix

@@ -162,11 +162,6 @@ lib.extendMkDerivation {
 
       patches = cargoPatches ++ patches;
 
-      postUnpack = ''
-        eval "$cargoDepsHook"
-      ''
-      + (args.postUnpack or "");
-
       configurePhase =
         args.configurePhase or ''
           runHook preConfigure

pkgs/build-support/rust/hooks/cargo-setup-hook.sh

@@ -1,6 +1,8 @@
 cargoSetupPostUnpackHook() {
     echo "Executing cargoSetupPostUnpackHook"
 
+    eval "${cargoDepsHook-}"
+
     # Some cargo builds include build hooks that modify their own vendor
     # dependencies. This copies the vendor directory into the build tree and makes
     # it writable. If we're using a tarball, the unpackFile hook already handles