this derivation will be built:
  /nix/store/v7mrk7rfbfhlxjcxhabp7l88dy1ml5in-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/v7mrk7rfbfhlxjcxhabp7l88dy1ml5in-bcachefs-module-7.0.0-30-generic.drv'...