this derivation will be built:
  /nix/store/y4hd0cb002q07df6wsahgf6vy9diqhww-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/y4hd0cb002q07df6wsahgf6vy9diqhww-bcachefs-module-7.0.0-34-generic.drv'...