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/q5w61raiz1v2wm63p56qhqlrwha6yjrk-ubuntu-26.04-server-cloudimg-amd64v3.img-nix-vm-test.qcow2.drv
  /nix/store/40k5q2019bv4gqxjkwli6sdx0qdpqz4c-run-vm-vm.drv
  /nix/store/iqkgbalsyqf2qxgyczi5qhmsn2byyhks-driver-configuration.json.drv
  /nix/store/4xrxmp0wyj198hy21vvfx02r086734jh-vm-test-ubuntu_26_04.drv