模拟开启实训的bug

app/controllers/shixuns_controller.rb

@@ -714,6 +714,7 @@ class ShixunsController < ApplicationController
 					end
 				end
 			rescue Exception => e
+				logger.info("shixun_exec error: #{e.message}")
 				if e.message != "ActiveRecord::RecordInvalid"
 					logger.error("##########project_fork error #{e.message}")
 					@myshixun.destroy!