rust patch

hosts/hacks/rust-fix.patch

@@ -0,0 +1,12 @@
+diff --recursive -u linux-6.15.9.orig/scripts/generate_rust_target.rs linux-6.15.9/scripts/generate_rust_target.rs
+--- linux-6.15.9.orig/scripts/generate_rust_target.rs	2025-08-01 10:51:29.000000000 +0200
++++ linux-6.15.9/scripts/generate_rust_target.rs	2025-11-29 12:30:54.792372738 +0100
+@@ -225,7 +225,7 @@
+         ts.push("features", features);
+         ts.push("llvm-target", "x86_64-linux-gnu");
+         ts.push("supported-sanitizers", ["kcfi", "kernel-address"]);
+-        ts.push("target-pointer-width", "64");
++        ts.push("target-pointer-width", 64);
+     } else if cfg.has("X86_32") {
+         // This only works on UML, as i386 otherwise needs regparm support in rustc
+         if !cfg.has("UML") {

hosts/nix-surface.nix

@@ -16,15 +16,10 @@
     "rd.systemd.show_status=auto"
   ];
 
-  boot.kernelPatches = [
-    {
-      name = "disable-rust";
-      patch = null;
-      extraConfig = ''
-        RUST n
-      '';
-    }
-  ];
+  boot.kernelPatches = [{
+    name = "rust-1.91-fix";
+    patch = ./hacks/rust-fix.patch;
+  }];
 
   disko.devices.disk.main.content.partitions.swap.size = "8G";
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";