this derivation will be built:
  /nix/store/n27v1aab70287q4w2p7wgjdjpxvj6qjk-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/n27v1aab70287q4w2p7wgjdjpxvj6qjk-bcachefs-module-7.0.0-38-generic.drv'...