machine:
  environment:
    KITCHEN_LOCAL_YAML: .kitchen.docker.yml
  ruby:
    version: 2.2.2
  services:
    - docker

dependencies:
  bundler:
    without: [development, kitchen_cloud, kitchen_vagrant]

test:
  override:
    - bundle exec rake
    - bundle exec kitchen verify -c:
        timeout: 900

general:
  artifacts:
    - "~/.kitchen/logs/"

machine:
  environment:
    KITCHEN_LOCAL_YAML: .kitchen.docker.yml
  ruby:
    version: 2.2.2
  services:
    - docker

dependencies:
  bundler:
    without: [development, kitchen_cloud, kitchen_vagrant]

test:
  override:
    - bundle exec rake
    - bundle exec kitchen verify -c:
        timeout: 900

general:
  artifacts:
    - ".kitchen/logs/"

Use artifact directory relative to build directory
Use artifact directory relative to build directory

Ref https://circleci.com/docs/configuration#artifacts