this derivation will be built:
  /nix/store/rz2p782g9isi17nq8yvnp4fa08hrh9s3-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/rz2p782g9isi17nq8yvnp4fa08hrh9s3-bcachefs-module-7.0.0-28-generic.drv'...