up mem limit

.travis.yml

@@ -46,6 +46,10 @@ before_script:
   - drush en -y field_group, field_group_table, field_formatter_class, field_formatter_settings, ctools, date, devel,
               ds, link, entity, libraries, redirect, token uuid, jquery_update, views, webform
 
+  # up memory limit of PHP
+  - echo "memory_limit=2G" >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
+
+
 script:
   # Link our repo to the modules directory
   - mv ../tripal sites/all/modules/tripal