Fixed type error in printf

src/scheduler/Scheduler.cpp

@@ -29,7 +29,7 @@ void drawProgressBar(double progress, int barWidth, const std::string& additiona
         else
             putchar(' ');
     }
-    printf("] %d%% | %s\r", static_cast<int>(progress * 100), additionalInfo);
+    printf("] %d%% | %s\r", static_cast<int>(progress * 100), additionalInfo.c_str());
     fflush(stdout);
 }