this derivation will be built:
  /nix/store/816647rzc1xhnbg7c0gqjdjkys4hh818-vm-test-run-pg_repack.drv
this path will be fetched (4.2 KiB download, 17.0 KiB unpacked):
  /nix/store/i3na4ch5kyiazvhn3wgx9l5xc9z423nj-nixos-test-driver-pg_repack