these 11 derivations will be built:
  /nix/store/63gy8c7gklgdcby1a1r8a8zal0x652x6-unit-echo.service.drv
  /nix/store/jm1phw2apbmvfsrdpbrjl5fgpkamfny8-system-units.drv
  /nix/store/2r97m88vp6mfm88nsrys8x9irjqdsar5-etc.drv
  /nix/store/ik7pn6lfq1si795409gjpmhg55rgg7gx-activate.drv
  /nix/store/1cs9bdqqil45b4b5pxiknhfppg4qg4cz-nixos-system-machine-test.drv
  /nix/store/xi99b6wwm6barsyl4i9d3l69wf24lj2a-closure-info.drv
  /nix/store/mpwxycq1xd7cz1ilim2mkcvb002bvczm-run-nixos-vm.drv
  /nix/store/aqxvwswxx032da09xs2kjihz25795ql8-nixos-vm.drv
  /nix/store/136bg5f6zqm25vm5fannq4qq9dajb05s-driverConfiguration.json.drv
  /nix/store/179z0xg4xbvprk26z9glzkgrmv8aamry-nixos-test-driver-systemd-escaping.drv
  /nix/store/zsf9q8ypvl34x8948pmkf2dgccx4jli1-vm-test-run-systemd-escaping.drv