language: node_js
node_js:
  - "6"
  - "7"
  - "8"
  - "9"
  - "10"
  - "11"
  - "12"

language: node_js
node_js:
  - "8"
  - "9"
  - "10"
  - "11"
  - "12"

Stop testing in Node.js 6 and 7.
Stop testing in Node.js 6 and 7.

The latest version of rollup-plugin-typescript2 uses async/await now,
which was not natively supported until Node.js 8.
