Got an error... I ran
sudo docker run -v /home/clayop:/build sile16/graphene-build --make_cli_wallet --make_witness_node
[ 65%] Built target graphene_net
make[1]: *** [programs/cli_wallet/CMakeFiles/cli_wallet.dir/rule] Error 2
make: *** [cli_wallet] Error 2
running ['/usr/bin/git', 'clone', 'https://github.com/cryptonomex/graphene.git']
running: /usr/bin/git submodule update --init --recursive
running /usr/bin/git pull --recurse-submodules origin master
['/usr/bin/cmake', '-DBOOST_ROOT="/usr/local/"', '-DCMAKE_BUILD_TYPE=Debug', '.']
['/usr/bin/make', '-j4', 'cli_wallet', 'witness_node']