machine # activating the configuration...
machine # [   10.183756] loop1: detected capacity change from 0 to 72
machine # [   10.184647] erofs: (device loop1): mounted with root inode @ nid 36.
machine # [   10.207432] overlayfs: upperdir is in-use as upperdir/workdir of another mount, accessing files from both mounts will result in undefined behavior.
machine # [   10.208224] overlayfs: workdir is in-use as upperdir/workdir of another mount, accessing files from both mounts will result in undefined behavior.
machine # Moving mount
machine # Mounting beneath top mount
machine # Invalid argument | move-mount.c: 546: main: mount_setattr
machine # [   10.217786] systemd[1]: etc.mount: Deactivated successfully.
machine # /nix/store/svgs5g4pblxdsmnvy0ypl14g5pmd5avp-nixos-system-machine-24.05pre-git/activate: line 106: /etc/shadow: No such file or directory
machine # [   10.475052] systemd[1]: Reloading requested from client PID 990 ('systemctl') (unit backdoor.service)...
machine # [   10.475780] systemd[1]: Reloading...
machine # [   10.621310] systemd[1]: Assertion 'close_nointr(fd) != -EBADF' failed at src/basic/fd-util.c:75, function safe_close(). Aborting.
machine # [   10.622649] systemd[1]: Caught <ABRT>, from our own process.

machine # activating the configuration...
machine # [   10.189783] loop1: detected capacity change from 0 to 72
machine # [   10.191137] erofs: (device loop1): mounted with root inode @ nid 36.
machine # Moving mount
machine # Mounting beneath top mount
machine # [   10.281312] systemd[1]: Reloading requested from client PID 972 ('systemctl') (unit backdoor.service)...
machine # [   10.282739] systemd[1]: Reloading...
machine # [   10.596393] systemd[1]: Reloading finished in 312 ms.

[user@system:~]$ nix-shell -p nix-info --run "nix-info -m"
output here