cargo-watch: fix build on darwin

pkgs/development/tools/rust/cargo-watch/default.nix

···
-{ stdenv, lib, rustPlatform, fetchFromGitHub, CoreServices, rust, libiconv }:
+{ stdenv, lib, rustPlatform, fetchFromGitHub, CoreServices, Foundation, rust, libiconv }:
 
 rustPlatform.buildRustPackage rec {
   pname = "cargo-watch";
···
 
   cargoSha256 = "sha256-Xp/pxPKs41TXO/EUY5x8Bha7NUioMabbb73///fFr6U=";
 
-  buildInputs = lib.optionals stdenv.isDarwin [ CoreServices libiconv ];
+  buildInputs = lib.optionals stdenv.isDarwin [ CoreServices Foundation libiconv ];
 
   # `test with_cargo` tries to call cargo-watch as a cargo subcommand
   # (calling cargo-watch with command `cargo watch`)

pkgs/top-level/all-packages.nix

···
   };
   cargo-valgrind = callPackage ../development/tools/rust/cargo-valgrind { };
   cargo-watch = callPackage ../development/tools/rust/cargo-watch {
-    inherit (darwin.apple_sdk.frameworks) CoreServices;
+    inherit (darwin.apple_sdk.frameworks) CoreServices Foundation;
   };
   cargo-wipe = callPackage ../development/tools/rust/cargo-wipe { };
   cargo-xbuild = callPackage ../development/tools/rust/cargo-xbuild { };