PHP memory limit

.travis.yml

@@ -42,6 +42,7 @@ matrix:
     - env: SYMFONY_VERSION="3.0.x-dev as 2.8"
 
 before_script:
+  - mkdir -p ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d && echo "memory_limit=-1" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
   - composer selfupdate
   - composer config -q github-oauth.github.com $GITHUB_OAUTH_TOKEN
   - if [ "$SYMFONY_VERSION" = "2.8.*@dev" ] || [ "$SYMFONY_VERSION" = "3.0.x-dev as 2.8" ]; then SYMFONY_DEPRECATIONS_HELPER=strict; fi;