ticker: fix scope issue

jobsets.nix

@@ -93,6 +93,14 @@ let
         frpball = "https://github.com/nek0/frpball.git master 1";
       };
     };
+
+    tracer = mkJobset {
+      description = "Haskell game";
+      nixexprpath = "tracer.nix";
+      gitUrls = {
+        tracer = "https://github.com/nek0/tracer.git master 1";
+      };
+    };
   };
 
   jobsetsJson = pkgs.writeText "jobsets.json" (builtins.toJSON jobsets );

ticker.nix

@@ -2,9 +2,7 @@
 }:
 
 with pkgs;
-with import <ticker> {
-  inherit pkgs;
-};
+with import <ticker> {};
 {
   ticker-update = lib.hydraJob ticker-update;
   ticker-serve = lib.hydraJob ticker-serve;