these 2 derivations will be built:
  /nix/store/d8bfsakp9gabiqgr03hxaa7r947znd2k-nixos-test-driver-sshd.drv
  /nix/store/gism8k5dh1di1p5j7haxmjvk17sdkzld-container-test-run-sshd.drv