Add comment.

lib/async/task.rb

@@ -187,6 +187,7 @@ def run(*arguments)
 				schedule do
 					@block.call(self, *arguments)
 				rescue => error
+					# I'm not completely happy with this overhead, but the alternative is to not log anything which makes debugging extremely difficult. Maybe we can introduce a debug wrapper which adds extra logging.
 					if @finished.nil?
 						Console::Event::Failure.for(error).emit("Task may have ended with unhandled exception.", severity: :warn)
 					# else