aws_deploy / ECインスタンスメモリ不足でデプロイが失敗する

[hasyrails]

** DEPLOY FAILED
** Refer to log/capistrano.log for details. Here are the last 20 lines:

compiling ./libsass/src/parser.cpp

virtual memory exhausted: Cannot allocate memory

make: *** [parser.o] エラー 1