anchor.diff:  
       %% Load background annotations.
       BackgroundAnnotations = background_annotations(),
  -    lager:info("Background annotations are: ~p", [BackgroundAnnotations]),
  +    debug("background annotations are: ~p", [BackgroundAnnotations]),
   
       %% Install faulted tracing interposition function.
       lists:foreach(fun({_, Node}) ->
  
positive.code:         end,
  
          %% Install function.
          lager:info("Installing faulted pre-interposition for node: ~p", [Node]),
          ok = rpc:call(Node, ?MANAGER, add_interposition_fun, [{faulted, Node}, InterpositionFun])
      end, Nodes),
  
  
negative.code:         end,
  
          %% Install function.
          replay_debug("installing faulted_for_background pre-interposition for node: ~p", [Node]),
          ok = rpc:call(Node, ?MANAGER, add_interposition_fun, [{faulted_for_background, Node}, InterpositionFun])
      end, Nodes),
  
  