update Travis build timeout

.ci/travis/linux/docker-build-test.sh

@@ -65,10 +65,10 @@ echo "travis_fold:end:cmake"
 # The tests should be aborted before travis times out, in order to allow uploading
 # the ccache and therefore speedup subsequent e builds.
 #
-# Travis will kill the job after approx 90 minutes, we subtract 8 minutes for
+# Travis will kill the job after approx 120 minutes, we subtract 8 minutes for
 # uploading and subtract the bootstrapping time from that.
 # Hopefully clocks are in sync :)
-TRAVIS_TIME=90
+TRAVIS_TIME=120
 UPLOAD_TIME=5
 CURRENT_TIME=`date +%s`
 TIMEOUT=$(expr \( ${TRAVIS_TIME} - ${UPLOAD_TIME} \) \* 60 - ${CURRENT_TIME} + ${TRAVIS_TIMESTAMP})