1these 13 derivations will be built:2 /nix/store/3hq0c2mb1951np1qvv4lmy4jdgp048g1-unit-postgresql.service.drv3 /nix/store/y9q25vgygg9h0h3mkjvhrfqzdqx9lxvc-postgresql-migrate.drv4 /nix/store/kdi6mf30ir7k7vl2slydma5x91imr6hb-unit-postgresql-migrate.service.drv5 /nix/store/2yl2v29a2wlzpyhca4klkijpif4lx7fi-system-units.drv6 /nix/store/9sjh3djp9aq81m0h5gqvj1p10c56dxqa-etc.drv7 /nix/store/98arlw7gji4dc32hg8rjgv3968qb7bhl-activate.drv8 /nix/store/qb0lryvli6hym92d1x3wyb1s2wq98f35-nixos-system-server-test.drv9 /nix/store/0wq33x03p97k2y1j4mq33xzh6w3xxwdz-nixos-system-server-test.drv10 /nix/store/906ds994qpzp04n4z5ql4pnqi3ksj836-closure-info.drv11 /nix/store/0571d5x637dphd3pjfx8n0hw2wl2a43v-run-nixos-vm.drv12 /nix/store/147hpak6qlxw317bkclvn7zfmrzycawc-nixos-vm.drv13 /nix/store/npi51dlkr7ii0h87py7yg0shw1zizbgy-nixos-test-driver-index_advisor.drv14 /nix/store/nixf9ds55qagz8k4rl6jzirc1fih4ll8-vm-test-run-index_advisor.drv