Revert "try removing the cache on travis too."

krlmlr · krlmlr · commit d97ca018bd15 · 2019-09-26T23:50:09.000+02:00
This reverts commit bdf94b0.
diff --git a/.travis.yml b/.travis.yml
@@ -26,6 +26,7 @@ after_script: R -q -e 'tic::after_script()'
 language: r
 sudo: false
 dist: trusty
+cache: packages
 latex: false
 
 matrix:
