this derivation will be built:
  /nix/store/vgi0awmm3bccq4fx26bfz1cjym4vw25w-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/vgi0awmm3bccq4fx26bfz1cjym4vw25w-bcachefs-module-7.0.0-38-generic.drv'...