env:
  - CXX=g++-4.8
language: node_js
node_js:
  - "10"
  - "12"
addons:
  apt:
    sources:
    - ubuntu-toolchain-r-test
    packages:
    - gcc-4.8
    - g++-4.8
install: npm install
before_install:
- npm install -g npm@6.1.0
- npm install -g greenkeeper-lockfile@1
before_script: greenkeeper-lockfile-update
after_script: greenkeeper-lockfile-upload

env:
  - CXX=g++-4.8
language: node_js
node_js:
  - "10"
  - "12"
  - "13"
addons:
  apt:
    sources:
    - ubuntu-toolchain-r-test
    packages:
    - gcc-4.8
    - g++-4.8
install: npm install
before_install:
- npm install -g npm@6.1.0
- npm install -g greenkeeper-lockfile@1
before_script: greenkeeper-lockfile-update
after_script: greenkeeper-lockfile-upload

Add Node 13 to Travis
Add Node 13 to Travis
