@@ -4,6 +4,10 @@ dist: trusty

 sudo: false

 warnings_are_errors: false

 bioc_required: true

+jobs:

+  include:

+    - stage: precache

+      script: true

 before_install:

   - Rscript -e 'update.packages(ask = FALSE)'

 r_build_args: "--no-build-vignettes"