5994808448
These binaries are used for some tmpfs-related features of criu as seen here: https://github.com/checkpoint-restore/criu/blob/fbe26923e85d7759e44666733a54c5ab951e8aa6/criu/filesystems.c#L420 . These tmpfs-related features are used by e.g. docker checkpoint, see: https://github.com/NixOS/nixpkgs/pull/230109 .