this derivation will be built:
  /nix/store/pfcghkzwx2mf54i87p96lc1pr5zna1n8-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/pfcghkzwx2mf54i87p96lc1pr5zna1n8-bcachefs-module-7.0.0-31-generic.drv'...