these 3 derivations will be built:
  /nix/store/a6n9rxbvpgbjdqspdaj0apl94ayvl4m6-source.drv
  /nix/store/blwzzcackfaqmzqhq6sbxkdjf59alsmp-agentty-0.9.49.drv
  /nix/store/x823i2jl6gb9z51l8m71qrm5sapw8ia6-check-agentty.drv