these 19 derivations will be built:
  /nix/store/wnfv6yxy1z9q61p0j3mh9xljsfmxflsr-unit-postgresql.service.drv
  /nix/store/r3z387n5k98kk28qxjwdmfd9sw6vb5rb-system-units.drv
  /nix/store/r2rb1xksw6sghwrm6ffg7800jah4vd35-etc.drv
  /nix/store/jgdiwd7ramgqjmfplhr640inv2jm4aw5-activate.drv
  /nix/store/4yz9my4fm79a2f4n0zv6rivb1ca8af0r-nixos-system-server-test.drv
  /nix/store/fx59mfvfq21fgdis0vrz42vis56vzqv1-unit-postgresql.service.drv
  /nix/store/686hgnyx65y5vm5ci8iqn790z68gqncp-system-units.drv
  /nix/store/9k02jk2w275kgrqbkgqc2ha3myk4f8vv-etc.drv
  /nix/store/qc4v8mjmilv13n5fpk4ylckar05f19kq-unit-postgresql.service.drv
  /nix/store/p03y122wdxw9cwfl8fq822c36xqi5v6b-system-units.drv
  /nix/store/pcaf5grkrbk8a7hkcgrqcq2ry5z5hbgy-etc.drv
  /nix/store/dxxyqj6r4gh1ldx3h05fs3rw4z5f1gjh-nixos-system-server-test.drv
  /nix/store/n02rzimpl0967c0qiz5rjlnzgqfmqkgr-activate.drv
  /nix/store/3vby3i5yvywa7aify24sf1zq4ja5krrl-nixos-system-server-test.drv
  /nix/store/vciiligbvdzkp9vd2733bcyg3h3hqs8z-closure-info.drv
  /nix/store/x1mpwpvpyyg4ygymlwbxhzwm45ksnlh6-run-nixos-vm.drv
  /nix/store/39nkysy8vi7ayglhnms14n4qsb6hvi97-nixos-vm.drv
  /nix/store/67lgjllqh89pi36xa31za864p9gbdp5c-nixos-test-driver-http.drv
  /nix/store/plw7hldfl0anfkrydsq9llf2q5rhmazf-vm-test-run-http.drv
these 4 paths will be fetched (13.8 KiB download, 135.8 KiB unpacked):
  /nix/store/szicqjp8417rlp1pra08ip0f719p9wdz-activate
  /nix/store/9dlsy58syjaj1kay87xh6jmfqw5z04xr-etc
  /nix/store/ffiv7nlkv21fv1av133p034zymz4yhi6-system-units
  /nix/store/wky8iljy6cr45w0gfza45zcmf532j6nn-unit-postgresql.service