this derivation will be built:
  /nix/store/nx6lhfv6dzpl6818jnhlp0mvcd185xp3-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/nx6lhfv6dzpl6818jnhlp0mvcd185xp3-bcachefs-module-7.0.0-29-generic.drv'...