these 2 derivations will be built:
  /nix/store/5q92jwx61z6bnp5iv7s71fxnzdsf8f2y-nixos-test-driver-sshd.drv
  /nix/store/amjz0r18466x3r8wifnc6nz725w5d4ch-container-test-run-sshd.drv