these 21 derivations will be built:
  /nix/store/9wsb14pwbq1vma80i0a4jfgjb8l77qc3-flakelet-config.json.drv
  /nix/store/8x9jfrsiig2wd97vlly24bkv249v66h9-unit-flakelet-web.service.drv
  /nix/store/m82pw44zv0cqdw6l098qcm3zgqb0jh0i-X-Restart-Triggers-flakelet-reconcile.drv
  /nix/store/agk9nlfj6wi4ii4nrcpijdshprinprgx-unit-flakelet-reconcile.service.drv
  /nix/store/fw3q9hc3r72bv69wbjj83yypfgaz9l4k-system-units.drv
  /nix/store/3ql0qgxagiw6p6f5nx2g1y6c1p12ns4m-etc.drv
  /nix/store/ml0q67n181hxc37l4igbjmjz9aw5jm5p-activate.drv
  /nix/store/qawa2z1q5ylb3wnq8qrigd06gi5x47gk-nixos-system-a-test.drv
  /nix/store/ps5h06k418337zr6mc6lzhdwbmfb98kk-closure-info.drv
  /nix/store/h0sl3v1kr3mxljsh704yc9ydafar66a9-run-nixos-vm.drv
  /nix/store/9l6nqqj843c9n0cna6nrrm9lrawxgh20-nixos-vm.drv
  /nix/store/fw4v770ldifn4fsx8vj2z8f3659l9i7z-system-units.drv
  /nix/store/ih0wms34cc72zsasbyrw1j0cli44vjjx-etc.drv
  /nix/store/qymi0l5pj89dg19mgdiagyvg0wvhhfx6-activate.drv
  /nix/store/z73aldgjjr7y3n4dqxsb66y4379shwzy-nixos-system-b-test.drv
  /nix/store/qrism4yg5dyyblvrgjvya09a8nysa5zz-closure-info.drv
  /nix/store/9kp03gp1z8igzy6ml8g1llqpd3wncnwm-run-nixos-vm.drv
  /nix/store/smibpmjk80rw77r7wab83jxq8l3nb1wh-nixos-vm.drv
  /nix/store/4w7jkcz0rhb4c2gcc1wmq6pc81bb8rl3-driverConfiguration.json.drv
  /nix/store/jr8rs6ky0qmqcmwc53nbgsj2ix4ga7aq-nixos-test-driver-flakelet-transfer.drv
  /nix/store/53lcdg7k30kza66x8sd6m69m724vhn46-vm-test-run-flakelet-transfer.drv