this derivation will be built:
  /nix/store/w3lr52w181yra5qk1nflq4591zv36yzq-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/w3lr52w181yra5qk1nflq4591zv36yzq-bcachefs-module-7.0.0-39-generic.drv'...