this derivation will be built:
  /nix/store/n8z5qx7a86swf2k4yavdppjc5jcykam2-bcachefs-module-7.0.0-34-generic.drv
building '/nix/store/n8z5qx7a86swf2k4yavdppjc5jcykam2-bcachefs-module-7.0.0-34-generic.drv'...