this derivation will be built:
  /nix/store/4bkplw4npa4nsf6f61zpj0j40hc7w48y-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/4bkplw4npa4nsf6f61zpj0j40hc7w48y-bcachefs-module-7.0.0-38-generic.drv'...