travis-ci: create the cache directory early in the build process

diff --git a/ci/lib-travisci.sh b/ci/lib-travisci.sh
index 9d379db8a01a25b9fb66db2e4b87c9de3b703408..197aa14c11a9b42cb49d3c62a9f6a2e98cb1a39b 100755 (executable)
--- a/ci/lib-travisci.sh
+++ b/ci/lib-travisci.sh
@@ -27,6 +27,8 @@ skip_branch_tip_with_tag () {
 # and installing dependencies.
 set -ex
 
+mkdir -p "$HOME/travis-cache"
+
 skip_branch_tip_with_tag
 
 if test -z "$jobname"