these 3 derivations will be built:
  /nix/store/vr0qrlf121q8vz1zxrp44v4fq3n6d8kd-source.drv
  /nix/store/d3isa9famhqw96bfwr7sxcn531k7xwz1-plannotator-0.28.6.drv
  /nix/store/sy06kn9jmpn9ng7fk5ba70clr7mv5pc9-check-plannotator.drv