these 16 derivations will be built:
  /nix/store/4vp8sngakkqi6qzdyqz41sg1s5axr5qm-unit-postgresql-setup.service.drv
  /nix/store/jilzwpyl6ra4nm1hn0h59i98p7xhnaf3-X-Restart-Triggers-dbus.drv
  /nix/store/jcnbdwc31rwr7cr5bh63dm3lfm1d0hwp-unit-dbus.service.drv
  /nix/store/qbhn999v93g0jcsh5x8dmvqxs7vki27c-unit-postgresql.service.drv
  /nix/store/dsmql2796fczficqia1k6q2zvn3g8mfb-system-units.drv
  /nix/store/ahyci26nri7wgsfp57vm6v1a4b2h5pma-unit-dbus.service.drv
  /nix/store/w5n90il32h4hdvdl0gkbz3qmy250gadh-user-units.drv
  /nix/store/508janjmvhl99aqpi7la1x4y0mxv1hn6-etc.drv
  /nix/store/jg6fsx88pmbp3cfl07ldhyi9y3mf60b0-activate.drv
  /nix/store/4i2d2k3la4j861w3czrbx94gr0yr8pcj-nixos-system-server-test.drv
  /nix/store/6kxqw1vd45l452bfzznvq09l76s6cx8c-nixos-system-server-test.drv
  /nix/store/55q83jwn0d0csbvvs91lb2ijywy4wmlc-closure-info.drv
  /nix/store/kr5iwjlm4b924vc460msymp007vav79b-run-nixos-vm.drv
  /nix/store/5ajzsl9l2gmawdac1kqvk67aqjdwzhcq-nixos-vm.drv
  /nix/store/hn51jj1b8wysl14468nhw750zn0prk37-nixos-test-driver-pg_jsonschema.drv
  /nix/store/10r4w0rycznbmbxsxk8ki9hs4gdnb35a-vm-test-run-pg_jsonschema.drv