this derivation will be built:
  /nix/store/1m6vhcqrhd264g5rc0xsvf33cq7a4rz9-inputDerivation-effect-docs.drv
building '/nix/store/1m6vhcqrhd264g5rc0xsvf33cq7a4rz9-inputDerivation-effect-docs.drv'...