these 15 derivations will be built:
  /nix/store/ca1y6xrl5cqyicwwbxynkqbh340f55sd-system-units.drv
  /nix/store/wqs44p0y38793hlm7i1pgkal9xy00qnr-etc.drv
  /nix/store/2hvm75gapljg2hj424h0wd9m02rngaip-activate.drv
  /nix/store/hqp82k9mw5z29a2r0d4qxx7z0zbmslc7-postgresql-migrate.drv
  /nix/store/nl1243jawws784k3ahdh9i08i52kym6q-unit-postgresql-migrate.service.drv
  /nix/store/w7i33gvhr0jh5lkbb0phfbclnrzaykbq-unit-postgresql.service.drv
  /nix/store/rb8vknq85lha25vjdwrpldy5sfb0w0h7-system-units.drv
  /nix/store/78nnyi6ivz02w95gpvqf69nc7vq9pf4h-etc.drv
  /nix/store/wx0f6a12dykky9k244mr59j5wyawa8wh-nixos-system-server-test.drv
  /nix/store/nxacsfjsxdmpi3qw5l042rl1wcqcr6x8-nixos-system-server-test.drv
  /nix/store/80f0rdy0kd2j9wplgjqg8jhlgv5p2d95-closure-info.drv
  /nix/store/4kks54h4k8vv06cv51x6zc15mx43ji80-run-nixos-vm.drv
  /nix/store/wrnnfr25nn2lzcmxk3j9vi12ap7lbmhf-nixos-vm.drv
  /nix/store/j2s31l6456g5d3vipss48l3ij7idq7zi-nixos-test-driver-amcheck-upgrade.drv
  /nix/store/0bzm0b46jz4qn5sbi2yisryc45cpl63x-vm-test-run-amcheck-upgrade.drv
these 6 paths will be fetched (15.5 KiB download, 138.9 KiB unpacked):
  /nix/store/qmi5lgdr741yj43vpxzlyqh7b7vmcq1h-activate
  /nix/store/9gzcxhydyc0jjl0888zyfs2rqj1vw969-etc
  /nix/store/bikdcdrsnfkcfn3aa0afpqsacp1fk8n4-postgresql-migrate
  /nix/store/yr0w1d5hdl1zjql2b7d9zhr9hplsals0-system-units
  /nix/store/qvy4cps6hlj3yw2lkm43qjkvl05cz0lj-unit-postgresql-migrate.service
  /nix/store/yj5ygjy89gri8b57z3k44mih8ax2pwyn-unit-postgresql.service