these 6 derivations will be built:
  /nix/store/vnii0q5s4iysr7rwkg6d2pq09qy19r6s-clan-cli-source.drv
  /nix/store/nin7wx5zd12kmg8f1gw67wczr285d5x1-clan-cli.drv
  /nix/store/xm0xwwxb91l3b0rv1ca0kn956598qp6l-offline-flake-for-test-clan-test-iso.drv
  /nix/store/qvi4zwaxymgw2hjzpb6nxpvvci8107vv-closure-info.drv
  /nix/store/210i5xmf1jmwv34gykc3f0iywphbnrwg-nixos-test-driver-clan-test-iso.drv
  /nix/store/h6kkj3xicbhrr12g64f86gah9bs5pck9-container-test-run-clan-test-iso.drv