Fix i386 build with custom toolchain (armv6 unknown state)

nix/toolchain.nix

@@ -6,14 +6,17 @@ with import ./common.nix;
 
 let
   platforms = [
-    "x86_64-unknown-linux-musl"
+    #"x86_64-unknown-linux-musl"
     "i686-unknown-linux-musl"
-    "aarch64-unknown-linux-musl"
+    #"aarch64-unknown-linux-musl"
     "armv6l-unknown-linux-musleabihf"
   ];
   pkgsList = builtins.map (target: import pkgsSrc { 
     inherit system; 
-    crossSystem = { config = target; };
+    crossSystem = {
+      config = target;
+      isStatic = true;
+    };
     overlays = [ cargo2nixOverlay ];
   }) platforms;
   pkgsHost = import pkgsSrc {};
@@ -25,7 +28,6 @@ in
   lib.flatten (builtins.map (pkgs: [
      pkgs.rustPlatform.rust.rustc
      pkgs.rustPlatform.rust.cargo
-     pkgs.clippy
      pkgs.buildPackages.stdenv.cc
   ]) pkgsList) ++ [
     kaniko