these 22 derivations will be built:
  /nix/store/6m9576f5dp5z7v7dn06n1845cl4lipdj-postgresql-migrate.drv
  /nix/store/3g0i7fd4sralsy2pr2xfs2hik900y3x5-unit-postgresql-migrate.service.drv
  /nix/store/imncdhphdzqi9i4cmgy4lnhkhfzwdkpw-unit-postgresql.service.drv
  /nix/store/19pbh3ryscwsd1xqclbfmlaygjpd6ifz-system-units.drv
  /nix/store/gikl1y7afbjjibj06mnz2h8a4j39z2n0-etc.drv
  /nix/store/611kpnswynj44hxwk0ifq6yajpjcsdrj-activate.drv
  /nix/store/0haslbc9b83v4swdxpvbiqbacrs6s8h8-nixos-system-server-test.drv
  /nix/store/msp326wsz9syzz2nb78v98qqcrgyrqjk-unit-postgresql.service.drv
  /nix/store/lcfz4b06gnxv64svljs98gaipz3pqwv3-system-units.drv
  /nix/store/i13zyv06f375vs6wxkw2sghszzj9s877-etc.drv
  /nix/store/slx86hbqar53yqzhrqql353cdm8f4v3x-activate.drv
  /nix/store/98igp6ilsdk9qz85a6vwdkrpbhsj4w7s-nixos-system-server-test.drv
  /nix/store/fbvv7zgpg6j7bcrc8g8krp1hs7zrjynd-unit-postgresql.service.drv
  /nix/store/fkmhhlsi2zvbbc939s9fwy7pbfxx3rx0-system-units.drv
  /nix/store/nn9n4pdr45pzkgdiybh3kc2gajqgrs2s-etc.drv
  /nix/store/adbg4a7xb6r7pb9102sjfpp3mbj5psxd-activate.drv
  /nix/store/65p3dm0hpaaldrv2y54vb23c1bz8c3pa-nixos-system-server-test.drv
  /nix/store/dwfm1ngl1kfb1srxgrpc3zmv2gi443h8-closure-info.drv
  /nix/store/brv9fkp2zs44l2bcxs0mabgfq1pqpa2a-run-nixos-vm.drv
  /nix/store/l2ch7gy43kjs5gja78ag5v7cwzq7sa5h-nixos-vm.drv
  /nix/store/lafrl7p6z6f3plsigykcllsswpzfczkl-nixos-test-driver-http.drv
  /nix/store/m9hdjl46iisjcapzvvp2vwkgaq0f461z-vm-test-run-http.drv