this derivation will be built:
  /nix/store/qpna6yps7krnlvp8fi8bhx4irs7lj7b7-inputDerivation-effect-docs.drv
building '/nix/store/qpna6yps7krnlvp8fi8bhx4irs7lj7b7-inputDerivation-effect-docs.drv'...