these 7 derivations will be built:
  /nix/store/zd6pv6ra88zjgxyzln1dcbcjcg67miq5-unit-postgresql-setup.service.drv
  /nix/store/y6cg6l9ga2vasz5j6jjxnpw6k2a9akvy-system-units.drv
  /nix/store/rrfaba6rfdxl7brv3rrvckxy823algn0-etc.drv
  /nix/store/kcipwqsvn8cz3lcrfh49ixnr54168pm7-nixos-system-server-test.drv
  /nix/store/zdwh54lsd7n6pafpcfqcy8bqikabzrnx-nixos-system-server-test.drv
  /nix/store/ypb92l6brg0c1wfnnwkj95pmag6s01c3-nixos-test-driver-pg_cron.drv
  /nix/store/vv0878ly1rwvi346j63602bl62sb7b7k-vm-test-run-pg_cron.drv
these 9 paths will be fetched (79.6 KiB download, 499.7 KiB unpacked):
  /nix/store/fd0v2pia0fz34pkhnqpdspc9nba7i2sp-activate
  /nix/store/rq8xgrn8r03w2zawh4yw66zdm91fwv4s-closure-info
  /nix/store/v6yaccn4kr3nl4jpd4hr6nwm7x43470r-etc
  /nix/store/0wdaxxbn78fgdr49w8kpwlnvb9k1kipd-nixos-system-server-test
  /nix/store/pz71dva8wwx5g3r7ck8g7kh0l9c7izqy-nixos-system-server-test
  /nix/store/zyrzrzxq3wcgrq3zsghs40346r84zpwb-nixos-vm
  /nix/store/myv0w91rhyzy015ciz6dpa4zkr5gl63s-run-nixos-vm
  /nix/store/gm04jshh3hrkpm70z7gpk0kmbhc20al7-system-units
  /nix/store/3jgm81fy002dx9056jz8mgg2vhf1g6s5-unit-postgresql-setup.service