these 7 derivations will be built:
  /nix/store/2yiwmigk6vvpn0nnab7vl9mxszw2kybx-unit-postgresql.service.drv
  /nix/store/w2v2y30x09ghl82mvvsyl6ihphw1094w-system-units.drv
  /nix/store/p965r867cpfq6lqs9ypdc4bbkygi717l-etc.drv
  /nix/store/99pcpl3hqllc0jjki38vsajb5yvv8ln3-nixos-system-server-test.drv
  /nix/store/122lshx6za69qz87ncwav58y00g8fsh3-nixos-system-server-test.drv
  /nix/store/04nclvkm6favzw5z390f5mqnjn49xqhb-nixos-test-driver-pgrouting.drv
  /nix/store/hgzwwd4zvmzrsglvzri1l1v3yaccygsp-vm-test-run-pgrouting.drv
these 9 paths will be fetched (106.3 KiB download, 641.3 KiB unpacked):
  /nix/store/db53dnz3pwb3fzh0b778waxvqcv67fm5-activate
  /nix/store/cxajmprknhii8dw28j879rffwkzhbb4s-closure-info
  /nix/store/s8pmhcj4zihzcjajr5jvyqz0k7s4jlbw-etc
  /nix/store/rzf2a1ka868cf0wzg1b4fy735i64z4mk-nixos-system-server-test
  /nix/store/vvaz2f6zacjyf7iwkzf1r61qhrh4kkdy-nixos-system-server-test
  /nix/store/vbnnmld99518wrmzlyzv8awclq4sjnx6-nixos-vm
  /nix/store/xfwc2cdklm016xisjxyfd3y5xdgwsfqf-run-nixos-vm
  /nix/store/n805c6m3inxzk3f51m413bczkks2qvfp-system-units
  /nix/store/cbjy639p3gks07akrvvjh7wl56q5ncqj-unit-postgresql.service