linux: fix cross

The .unwrapped attributes are not correctly spliced.  Use the top
level attributes instead, which are spliced correctly.

Fixes: e9b2edb491 ("linux: un-simplify toolchain selection")

pkgs/os-specific/linux/kernel/generic.nix

@@ -11,9 +11,9 @@
   pahole,
   lib,
   stdenv,
-  rustc,
+  rustc-unwrapped,
   rustPlatform,
-  rust-bindgen,
+  rust-bindgen-unwrapped,
   # testing
   emptyFile,
   nixos,
@@ -126,7 +126,7 @@ let
 
       commonStructuredConfig = import ./common-config.nix {
         inherit lib stdenv version;
-        rustAvailable = lib.meta.availableOn stdenv.hostPlatform rustc;
+        rustAvailable = lib.meta.availableOn stdenv.hostPlatform rustc-unwrapped;
 
         features = kernelFeatures; # Ensure we know of all extra patches, etc.
       };
@@ -190,8 +190,8 @@ let
         ]
         ++ lib.optional (lib.versionAtLeast version "5.2") pahole
         ++ lib.optionals withRust [
-          rust-bindgen.unwrapped
-          rustc.unwrapped
+          rust-bindgen-unwrapped
+          rustc-unwrapped
         ];
 
         RUST_LIB_SRC = lib.optionalString withRust rustPlatform.rustLibSrc;

pkgs/os-specific/linux/kernel/manual-config.nix

@@ -22,8 +22,8 @@
   kmod,
   ubootTools,
   fetchpatch,
-  rustc,
-  rust-bindgen,
+  rustc-unwrapped,
+  rust-bindgen-unwrapped,
   rustPlatform,
 }:
 
@@ -169,8 +169,8 @@ lib.makeOverridable (
         ]
         ++ optional (lib.versionAtLeast version "5.13") zstd
         ++ optionals withRust [
-          rustc.unwrapped
-          rust-bindgen.unwrapped
+          rustc-unwrapped
+          rust-bindgen-unwrapped
         ];
 
       in
@@ -229,8 +229,8 @@ lib.makeOverridable (
           zlib
         ]
         ++ optionals withRust [
-          rustc.unwrapped
-          rust-bindgen.unwrapped
+          rustc-unwrapped
+          rust-bindgen-unwrapped
         ];
 
         RUST_LIB_SRC = lib.optionalString withRust rustPlatform.rustLibSrc;