Cache build2cmake and kernel-abi-check (#213)

Add `build2cmake` and `kernel-abi-check` to the `forCache` link farm, so
that we upload them to our binary cache as well.

Author: danieldk

flake.nix

@@ -128,6 +128,8 @@
         packages = rec {
           build2cmake = pkgs.callPackage ./pkgs/build2cmake { };
 
+          kernel-abi-check = pkgs.callPackage ./pkgs/kernel-abi-check { };
+
           update-build = pkgs.writeShellScriptBin "update-build" ''
             ${build2cmake}/bin/build2cmake update-build ''${1:-build.toml}
           '';
@@ -168,7 +170,11 @@
               );
             in
             pkgs.linkFarm "packages-for-cache" (
-              torchOutputs // lib.optionalAttrs nixpkgs.legacyPackages.${system}.stdenv.isLinux oldLinuxStdenvs
+              {
+                inherit build2cmake kernel-abi-check;
+              }
+              // torchOutputs
+              // lib.optionalAttrs nixpkgs.legacyPackages.${system}.stdenv.isLinux oldLinuxStdenvs
             );
         };
       }