these 8 derivations will be built:
  /nix/store/35caapj52yhcjlzgyl6mb4qz2655c9s9-activate.drv
  /nix/store/3v7nn84py3n7r1z608kxkasf5zg951mb-nixos-system-server-test.drv
  /nix/store/i4gl0iqxffga0cnx4520w3l1nkjqm267-nixos-system-server-test.drv
  /nix/store/ilw3ijbsrj5g0igc6j0n25m0v55s92kw-closure-info.drv
  /nix/store/r2rbamcxfwfx42lxisbk7d2wlsn390x8-run-nixos-vm.drv
  /nix/store/dg0jhld7g5kd5zcrlnb3h1s3rrw4a9aj-nixos-vm.drv
  /nix/store/8mvf6a25yw2wx1srd0namq3w97v3li25-nixos-test-driver-pg_repack.drv
  /nix/store/p42kmk5jyg395d979sk7g1zc6p71scb3-vm-test-run-pg_repack.drv