this derivation will be built:
  /nix/store/6q4c8pyii4pqn9b7b3fsiiwwmca514zs-inputDerivation-effect-docs.drv
building '/nix/store/6q4c8pyii4pqn9b7b3fsiiwwmca514zs-inputDerivation-effect-docs.drv'...