Restore missing error raise

Author: Nu-hin

lib/remote_ruby/ssh_adapter.rb

@@ -25,7 +25,9 @@ def open(code, stdin, stdout, stderr)
       Net::SSH.start(host, nil, config) do |ssh|
         with_temp_file(code, ssh) do |fname|
           res = run_code(ssh, fname, stdin, stdout, stderr)
-          ret = get_result(ssh, fname) if res.zero?
+          raise "Process exited with code #{status}" unless res.zero?
+
+          ret = get_result(ssh, fname)
         end
       end
       ret