adds sudo nixtmpdir removal

src/Argonix.hs

@@ -255,6 +255,9 @@ setupSystem sa = do
   vshell "sudo rm -rf result" empty >>= \case
     ExitSuccess   -> printInfo "removed ./result"
     ExitFailure n -> die ("Failed to remove ./result " <> repr n)
+  vshell "sudo rm -rf nixtmpdir" empty >>= \case
+    ExitSuccess   -> printInfo "removed ./result"
+    ExitFailure n -> die ("Failed to remove ./result " <> repr n)
   doVerbose $ printInfo "running nix-build for the containers attribute."
   doVerbose $ printCommand $ "nix-build " <> pack
     (unwords (nixArguments "containers" sa))