these 6 derivations will be built:
  /nix/store/31nmri580nks4jdjak2w46a8wmw6gp1c-libguestfs-1.56.2.drv
  /nix/store/hc128s5gdfl0ik7xi8drjsmmk8w3vn79-guestfs-tools-1.52.3.drv
  /nix/store/p904v70f9xv1155r1fflg5xkzcpdc3vl-ubuntu-23.10-server-cloudimg-amd64.img-nix-vm-test.qcow2.drv
  /nix/store/5y8q14k13scr56shgjldlj7waf0k1700-run-vm-vm.drv
  /nix/store/zp5s5x2drywzh0v880193lvby63nz40w-driver-configuration.json.drv
  /nix/store/389v4rlblgr8hqdibd3yhm7ak48d2n7s-vm-test-ubuntu_23_10.drv