Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/doctrine/cache/.travis.yml

@@ -0,0 +1,33 @@
+language: php
+
+php:
+  - 5.3
+  - 5.4
+  - 5.5
+  - 5.6
+  - hhvm
+
+services:
+    - riak
+    - mongodb
+    - memcached
+    - redis-server
+
+before_install:
+    - sh -c "if [ $TRAVIS_PHP_VERSION != 'hhvm' ]; then pecl install riak-beta; fi"
+    - sh -c "if [[ $TRAVIS_PHP_VERSION != 'hhvm' && `php-config --vernum` -ge 50500 ]] ; then pecl config-set preferred_state beta; printf "yes\n" | pecl install apcu ; else echo 'extension="apc.so"' >> ./tests/travis/php.ini ;fi"
+    - composer self-update
+    - sh -c "if [ $TRAVIS_PHP_VERSION != 'hhvm' ]; then phpenv config-add ./tests/travis/php.ini; fi"
+
+install:
+    - composer --prefer-source --dev install
+
+script:
+    - ./vendor/bin/phpunit -c ./tests/travis/phpunit.travis.xml -v
+
+after_script:
+    - php vendor/bin/coveralls -v
+
+matrix:
+  allow_failures:
+    - php: hhvm