Use remove_dir instead of remove_dir_all because youki doesn't have permission to delete contents in cgroup directory.
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…ve permission to delete contents in cgroup directory. https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html > A cgroup which doesn’t have any children or live processes can be destroyed by removing the directory. Note that a cgroup which doesn’t have any children and is associated only with zombie processes is considered empty and can be removed: > rmdir $CGROUP_NAME
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I ran the delete in the tutorial and got an error.
https://doc.rust-lang.org/std/fs/fn.remove_dir_all.html
https://www.kernel.org/doc/html/latest/admin-guide/cgroup-v2.html