this derivation will be built:
  /nix/store/blzap1d6mmjzg4kvr4gw9qic1drhsx2a-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/blzap1d6mmjzg4kvr4gw9qic1drhsx2a-bcachefs-module-7.0.0-39-generic.drv'...