these 12 derivations will be built:
  /nix/store/40s2yaj2vwxqkwlaz7hx1b0i05iy7s1y-init-old.drv
  /nix/store/lbw1m05x5d0bhm63clw4qg9g3dcj5j8w-unit-postgresql.service.drv
  /nix/store/hsfwgyqgg2bhkrdhcls9ibkj0sk5vg1c-system-units.drv
  /nix/store/f4llbx9jfm8zd5f3f5nwmazqd7h0xvbx-etc.drv
  /nix/store/v1dzab8c7gy53phhyp0rnfgh0ad3il7j-activate.drv
  /nix/store/ksdsnydvzk1cwknik9wdmgzf1gwna7pi-nixos-system-server-test.drv
  /nix/store/y9r83sbbznyx4yp6x8wbkclm4zfvyrdp-closure-info.drv
  /nix/store/lhh7wayzaqpl7l6ivafs7790x2c4la3d-run-nixos-vm.drv
  /nix/store/kinmb5v2mvws86gg9ml8hmb3gb900ypf-nixos-vm.drv
  /nix/store/vi8mj7n59zmh1bgrvqrgz683a7d7hcks-drive.drv
  /nix/store/9qdifv04x3ki4dd4di4arc4awsbrza3q-nixos-test-driver-pg-upgrade-start-guard.drv
  /nix/store/wqr7zrl8dm3l3jlqv7j76k10csra2pa3-vm-test-run-pg-upgrade-start-guard.drv