these 3 derivations will be built:
  /nix/store/lhyg7jcd45m2nizaa1vxd8xja1qbagbc-source.drv
  /nix/store/snvk4f45pai83xndi1p30i1dfjnhlh4b-agentty-0.9.29.drv
  /nix/store/a1d4p2cq5apz0i7s38347gwf5sxqbpfl-check-agentty.drv