this derivation will be built:
  /nix/store/a9rblr150qjkfg2760szi9p51l58av7k-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/a9rblr150qjkfg2760szi9p51l58av7k-bcachefs-module-7.0.0-31-generic.drv'...