zet: fix build (#336435)

pkgs/tools/text/zet/default.nix

···
 { lib
 , rustPlatform
 , fetchFromGitHub
+, fetchpatch2
 }:
 
 rustPlatform.buildRustPackage rec {
···
     rev = "v${version}";
     hash = "sha256-IjM+jSb+kdML0zZGuz9+9wrFzQCujn/bg9/vaTzMtUs=";
   };
+
+  patches = [
+    # fix unused_qualifications lint with rust 1.78+
+    # https://github.com/yarrow/zet/commit/b6a0c67f6ac76fb7bf8234951678b77fbac12d76
+    (fetchpatch2 {
+      url = "https://github.com/yarrow/zet/commit/b6a0c67f6ac76fb7bf8234951678b77fbac12d76.patch?full_index=1";
+      hash = "sha256-HojhKM7UJh5xpD9a18Wh0hiiUDOE+jK0BKGYozYjMBc=";
+    })
+  ];
 
   cargoHash = "sha256-kHIOsSR7ZxBzp4dtm2hbi8ddtlQ86x5EASk5HFmnhFo=";