How to run docker inside an lxc container?

I have unprivileged lxc container on Arch host created like this: lxc-create -n test_arch11 -t download -- --dist archlinux --release current --arch amd64 And it doesn't run docker. What I did inside a container: 1. Installed docker from Arch repos pacman -S docker 2. Tried to run a hello-world container docker run hello-world 3. Got the next error: > docker: Error response from daemon: OCI runtime create failed: container_linux.go:346: starting container process caused "process_linux.go:297: applying cgroup configuration for process caused \"mkdir /sys/fs/cgroup/cpuset/docker: permission denied\"": unknown. > ERRO error waiting for container: context canceled What is wrong and how to make docker work inside a container?