this derivation will be built:
  /nix/store/bqfpcg3p9fnwpnldywr50m6bfi0y9y4i-inputDerivation-effect-docs.drv
building '/nix/store/bqfpcg3p9fnwpnldywr50m6bfi0y9y4i-inputDerivation-effect-docs.drv'...