these 22 derivations will be built:
  /nix/store/1jyxfilqm0bcmfy2csan4gm76isi37zw-unit-postgresql.service.drv
  /nix/store/6m9576f5dp5z7v7dn06n1845cl4lipdj-postgresql-migrate.drv
  /nix/store/3g0i7fd4sralsy2pr2xfs2hik900y3x5-unit-postgresql-migrate.service.drv
  /nix/store/87mcgmrlzpbi3n4a2iq7ixlgylwjxaj3-system-units.drv
  /nix/store/v82ywk7bcmq5ph9rs2pp7j2j811hvy42-etc.drv
  /nix/store/iazrm8vfpy6bfq23psnxz6dh5fm99dwn-activate.drv
  /nix/store/brxb63n3ias9wqnjsag9d129ff6pybmg-nixos-system-server-test.drv
  /nix/store/r7a35g6szaw70v4avcda4c6l77h5c7c2-unit-postgresql.service.drv
  /nix/store/ykslzk999kbr93nlr27w94ya9bspxlfz-system-units.drv
  /nix/store/fvkpkcdlnwn4a2rw1ygc58klb0fxin3w-etc.drv
  /nix/store/71qfp7rzsaz4afn8dn05678dm78l8mwz-unit-postgresql.service.drv
  /nix/store/dn4xfya2v8q84h2j3cajs3kw8krrq17r-system-units.drv
  /nix/store/83g5pba808g9l1f21kwzvhlvvkviaspm-etc.drv
  /nix/store/b3cbwrsx2aa01nmpr0r4br1gjhk0ags3-activate.drv
  /nix/store/qiq6dgvznmc2y6x4dglnmh4kq451w9in-nixos-system-server-test.drv
  /nix/store/r3br6fwsd8rnnj9z145vn3n037kln2sk-activate.drv
  /nix/store/w5x4prz2a753581l99hi6yqsvzbmk3wf-nixos-system-server-test.drv
  /nix/store/nx4nbz8lyirpiza2pz0ny8swmdlgc1f2-closure-info.drv
  /nix/store/7zhzw9a02bx8r406ibk5cgq2zyzqdclj-run-nixos-vm.drv
  /nix/store/kh6mv3p8a6gm4hb766wxd3kfnv4bbz37-nixos-vm.drv
  /nix/store/7r7wxw168lwzzcb3yhxb3wdgvzs6wd45-nixos-test-driver-index_advisor.drv
  /nix/store/4sramydmcbrgvpvbnm8733wmhzncsd6x-vm-test-run-index_advisor.drv