this derivation will be built:
  /nix/store/s9chnmpirv9ggll83kb3s6mffhsjbnkv-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/s9chnmpirv9ggll83kb3s6mffhsjbnkv-bcachefs-module-7.0.0-39-generic.drv'...