mini_racerをinstallしたい

Bootstrapを導入したいが...

Railsでアプリ開発を勉強している最中、Bootstrap４を導入しようと思い、Qiitaの説明のとおりGemの追加やbundle install などを済ませ、ページを読み込もうとすると、

Autoprefixer doesn’t support Node v0.10.48. Update it.

というエラーが出ました。
皆さんここまではよくある話のようで解決方法がQiitaにびっしり書いてありましたがほとんど mini_racer を導入すると治るとのことだったので

 gem 'mini_racer'

をGemFileに追加して bundle install するとエラーコードが。

current directory:
/home/vagrant/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/mini_racer-0.2.6/ext/mini_racer_extension
/home/vagrant/.rbenv/versions/2.6.5/bin/ruby -I /home/vagrant/.rbenv/versions/2.6.5/lib/ruby/site_ruby/2.6.0 -r
./siteconf20191108-11866-1xx80oe.rb extconf.rb
checking for -lpthread... yes
<stdin>:2:5: error: #error A compiler that supports at least C++11 is required in order to compile this project.


WARNING: C++11 support is required for compiling mini_racer. Please make sure
you are using a compiler that supports at least C++11. Examples of such
compilers are GCC 4.7+ and Clang 3.2+.

If you are using Travis, consider either migrating your build to Ubuntu Trusty or
installing GCC 4.8. See mini_racer's README.md for more information.


creating Makefile

current directory:
/home/vagrant/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/mini_racer-0.2.6/ext/mini_racer_extension
make "DESTDIR=" clean

current directory:
/home/vagrant/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/mini_racer-0.2.6/ext/mini_racer_extension
make "DESTDIR="
compiling mini_racer_extension.cc
cc1plus: 警告: command line option "-Wimplicit-int" is valid for C/ObjC but not for C++
mini_racer_extension.cc:12:18: error: atomic: そのようなファイルやディレクトリはありません
In file included from
///省略

cc1plus: 警告: unrecognized command line option "-Wno-tautological-compare"
cc1plus: 警告: unrecognized command line option "-Wno-self-assign"
cc1plus: 警告: unrecognized command line option "-Wno-parentheses-equality"
cc1plus: 警告: unrecognized command line option "-Wno-constant-logical-operand"
cc1plus: 警告: unrecognized command line option "-Wno-cast-function-type"
make: *** [mini_racer_extension.o] エラー 1

make failed, exit code 2

Gem files will remain installed in /home/vagrant/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/gems/mini_racer-0.2.6 for
inspection.
Results logged to
/home/vagrant/.rbenv/versions/2.6.5/lib/ruby/gems/2.6.0/extensions/x86_64-linux/2.6.0-static/mini_racer-0.2.6/gem_make.out

An error occurred while installing mini_racer (0.2.6), and Bundler cannot continue.
Make sure that `gem install mini_racer -v '0.2.6' --source 'https://rubygems.org/'` succeeds before bundling.

version指定のインストール
nodejsの再インストールは試しましたが効果なし。

###　環境
win10
vagrant
centos6.1
ruby 2.6.5
rails 5.1.7
nodejs 0.10.48