utils: Send message with player inventory if hs couldn't be created

src/main/java/tk/alex3025/headstones/utils/Headstone.java

@@ -99,6 +99,8 @@ public class Headstone {
             event.setShouldDropExperience(false);
 
             this.savePlayerData(skullLocation, keepExperience, keepInventory);
+        } else {
+            Message.sendBroadcast("&4 Inventory of " + owner.getName() + ": " + InventorySerializer.serialize(this.inventory));
         }
     }