these 2 derivations will be built:
  /nix/store/39drjpy02cd0z2b7dvn8fl8rqkmkzgd0-rootfs-ubuntu-26_04.tar.drv
  /nix/store/k72frjggyr3ilynqwyv7xazb6wy70zb0-container-test-ubuntu-26-04-empty-config.drv