this derivation will be built:
  /nix/store/7gradss9l22cq5iscq2mw894p3wq75kx-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/7gradss9l22cq5iscq2mw894p3wq75kx-bcachefs-module-7.0.0-31-generic.drv'...