Vagrant上のVMへのmecab-ipadic-neologdのインストールが失敗する時 ref: http://qiita.com/comocc/items/bfa5c4fe3c84d31e8ae7

file0.txt

(前略)
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
reading ./mecab-user-dict-seed.20170417.csv ... /home/ubuntu/mecab-ipadic-neologd/bin/../libexec/make-mecab-ipadic-neologd.sh: line 492: 2130 Aborted                 (core dumped) ${MECAB_LIBEXEC_DIR}/mecab-dict-index -f UTF8 -t UTF8

file1.txt

Vagrant.configure("2") do |config|
  config.vm.box = "ubuntu/xenial64"
  config.vm.provider :virtualbox do |vb|
    vb.customize ["modifyvm", :id, "--memory", 4096]
  end
end

file2.txt

              total        used        free      shared  buff/cache   available
Mem:           3.9G         47M        1.3G        5.8M        2.5G        3.6G
Swap:            0B          0B          0B

file3.txt

(前略)
[install-mecab-ipadic-NEologd] : Usage of mecab-ipadic-NEologd is here.
Usage:
    $ mecab -d /usr/lib/mecab/dic/mecab-ipadic-neologd ...

[install-mecab-ipadic-NEologd] : Finish..
[install-mecab-ipadic-NEologd] : Finish..