this derivation will be built:
  /nix/store/l7piav021qbzdh0bh34jhdg2p1sqdmmf-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/l7piav021qbzdh0bh34jhdg2p1sqdmmf-bcachefs-module-7.0.0-38-generic.drv'...