these 2 derivations will be built:
  /nix/store/yfry41if8kdprfiyfm8fmby59yh9f2b0-rootfs-ubuntu-26_04.tar.drv
  /nix/store/xr0br7bz032v7sa78hsyz4gmc20q50hp-container-test-ubuntu-26-04-extra-init.drv