these 6 derivations will be built:
  /nix/store/znfyvgcw02bbsdjyskbj641aj628h913-libguestfs-1.56.2.drv
  /nix/store/5d284xrsa8mp0gwhg7zq8kncnckjmp2a-guestfs-tools-1.52.3.drv
  /nix/store/crpwbs4dna231gw061cbispm3mzzkg9l-ubuntu-26.04-server-cloudimg-amd64v3.img-nix-vm-test.qcow2.drv
  /nix/store/hykrvb0ra1zb5700kmxh7c1w21jnqs5c-run-vm-vm.drv
  /nix/store/d7d2sc5a5qv88yscwhlf9j1m98d15ar7-driver-configuration.json.drv
  /nix/store/42cq2mq8mwdj1whzkx6fhjqaz6vggf5r-vm-test-ubuntu_26_04.drv