whats wrong here?

checkaccount.rb

def check_account(acct, pass)
	file = File.open("account.txt", "r") 
	while !file.eof?
		line = file.readline
		if line.include?(acct) && line.include?(pass)
      file.close
			return 1
		end
      file.close
       return 0
	end
		
end