+ dirname /input/Singularity + REPO_ROOT=/input + cp -r /input/ /usr/local/var/singularity/mnt/container/planner + apt-get update + apt-get -y install cmake g++ make python debconf: delaying package configuration, since apt-utils is not installed + cd /planner + ./build.py release64 + mkdir -p builds/h2-mutexes/ + cd builds/h2-mutexes/ + cmake ../../h2-mutexes/ + make -j4