doc and examples can be disabled since
6e1c66a94c
so set BUILD_SANDBOX=OFF as BUILD_DOC=OFF is already passed by
cmake-infrastructure
https://github.com/USCiLab/cereal/releases/tag/v1.3.2
Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>