these 14 derivations will be built:
  /nix/store/f4n7dwg28hli093x2sd49l1b7pgqfqci-unit-postgresql-migrate.service.drv
  /nix/store/w39m81z097vj0iki3cy9m80x2szcs7wn-system-units.drv
  /nix/store/9x6vm0fibm2vvdwz7w6am2pijhskdlg5-etc.drv
  /nix/store/wicd8scqcy97bdqipmb4r2aqd3l2vmkk-activate.drv
  /nix/store/2dpvxw3vwgh8vm768adpjrq7wxjq6gkh-nixos-system-server-test.drv
  /nix/store/fairqzfn74lkxrsc2hc2fbpgylq1cp30-etc.drv
  /nix/store/hdm2idzyqxzaacxd5rzamjgfrayxq856-activate.drv
  /nix/store/i353y8m8cdrhn6yfqiasw9hhk7iiak25-nixos-system-server-test.drv
  /nix/store/64pg1w1iwsqqvyj0k3wgv3pz82aj3d4g-nixos-system-server-test.drv
  /nix/store/17gllnac796zyvaxrgzx865xjkq6y3df-closure-info.drv
  /nix/store/ci9nskg2bky3yw7g7cssypmxsm637irj-run-nixos-vm.drv
  /nix/store/53n614diiqma4iv3vrlgywiisf29f0pi-nixos-vm.drv
  /nix/store/lqn9ml2m0kbdbj965knixm2ygs39a4ck-nixos-test-driver-index_advisor.drv
  /nix/store/6kx4zbk8zf5j1ngw78qgn9m7gxmlds8l-vm-test-run-index_advisor.drv