these 2 derivations will be built:
  /nix/store/sraf4q0spgnr7snfn1iq2virfh01a7va-rootfs-ubuntu-24_04.tar.drv
  /nix/store/k0x7qxz75a97wh23lgwfchk5jbm807fy-container-test-ubuntu-24-04-user-packages.drv