these 19 derivations will be built:
  /nix/store/xmlsvjd0nfkpclh6rh8gx794j002grfa-system-path.drv
  /nix/store/p27fr32h9p6axzcablndwsj89pkan4lq-postgresql-migrate.drv
  /nix/store/abk8bidbx64pg9vqgif02n4va7wzzgc6-unit-postgresql-migrate.service.drv
  /nix/store/qwyd33nk2vbf44m2bw44k750iwac1rb4-dbus-1.drv
  /nix/store/nbqvwfyxb8fz6ns040d3ca4qxgg16cpz-X-Restart-Triggers-dbus.drv
  /nix/store/hj7898k3wk32hynpzzfzh1qlizx4yyni-unit-dbus.service.drv
  /nix/store/j7zxk3rn4ah1g0fwwp2j0wm6xfzz1q6z-unit-postgresql.service.drv
  /nix/store/5pgn1z76kpq958wya0a2015nxpghg1yz-system-units.drv
  /nix/store/qmhqqm1mpih5gi1v42xrbf47shb0xhx1-unit-dbus.service.drv
  /nix/store/iqv65j8nh0amvalyqm0p2jgpyqh1z010-user-units.drv
  /nix/store/xs1g1zybbqjgi2nxm1ynssj5nv6hijag-etc.drv
  /nix/store/ysvzn2l4lykhshp4h9dbnwcmvr2rq46r-activate.drv
  /nix/store/skk9ikcsm9lw9a4dahswh0cllw0k7499-nixos-system-server-test.drv
  /nix/store/12iglmpday2bgqw4nc5zksqc51xsr4pg-nixos-system-server-test.drv
  /nix/store/fxwh7j2w8gkaz57d5hxxqzyr30nyyccg-closure-info.drv
  /nix/store/vskwi8imyg7j9dwkmrvdc6lar2agaqfm-run-nixos-vm.drv
  /nix/store/gn6a7ab8ms79sr527rnqqkz5pwjingi3-nixos-vm.drv
  /nix/store/5wxr9l7slchs0sm452xm65qhmjyz9br0-nixos-test-driver-amcheck-upgrade.drv
  /nix/store/zb4y1m1gdf5skb52q97xbbbppbhf5cpm-vm-test-run-amcheck-upgrade.drv