thread.rb

at_exit do
        puts 'sync at_exit'  
        if $ERROR_INFO       
          puts 'yeaah'         
          error = {
            timestamp: Time.now, 
            message: $ERROR_INFO.message, 
            backtrace: $ERROR_INFO.backtrace,
          }
          LOG.error YAML.dump(error)
        end
      end