this derivation will be built:
  /nix/store/k6nxrismdzwk9ypvn2rnq33dz5yciwmi-inputDerivation-effect-docs.drv
building '/nix/store/k6nxrismdzwk9ypvn2rnq33dz5yciwmi-inputDerivation-effect-docs.drv'...