Recover Docker for Mac leaked disk space
Remove Docker.qcow2 file
rm -rf ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/Docker.qcow2
Restart Docker daemon
killall -HUP com.docker.hyperkit
rm -rf ~/Library/Containers/com.docker.docker/Data/com.docker.driver.amd64-linux/Docker.qcow2
killall -HUP com.docker.hyperkit