anchor.diff:                      Worker ! {compile, Src, Target, Config, CompileFn},
                       compile_queue(Pids, Rest, Config, CompileFn)
               end;
  +
  +        {fail, Error} ->
  +            ?DEBUG("Worker compilation failed: ~p\n", [Error]),
  +            ?FAIL;
           
           {compiled, Source} ->
               ?CONSOLE("Compiled ~s\n", [Source]),
  
positive.code:     rebar_config:get_list(Config, Key, []).
  
  compile_erl(Source, Config) ->
      Opts = [{i, "include"}, {outdir, "ebin"}, report] ++ compile_opts(Config, erl_opts),
      case compile:file(Source, Opts) of
          {ok, _} ->
              ok;
          error ->
              ?FAIL
      end.
  
  
negative.code:         {compile, Src, Target, Config, CompileFn} ->
              case needs_compile(Src, Target) of
                  true ->
                      case catch(CompileFn(Src, Config)) of
                          ok ->
                              QueuePid ! {compiled, Src},
                              compile_worker(QueuePid);
                          Error ->
                              QueuePid ! {fail, Error},
                              ok
                      end;
                  false ->
                      ?INFO("Skipping ~s\n", [Src]),
                      compile_worker(QueuePid)
              end;
  
          empty ->
              ok
      end.
  