this derivation will be built:
  /nix/store/am2wkgp4ifvh7yicyqhc0a97sd2cr4mg-inputDerivation-effect-docs.drv
building '/nix/store/am2wkgp4ifvh7yicyqhc0a97sd2cr4mg-inputDerivation-effect-docs.drv'...