this derivation will be built:
  /nix/store/nps6wrdc64fw5vk86x3k9fd0f9b34v7a-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/nps6wrdc64fw5vk86x3k9fd0f9b34v7a-bcachefs-module-7.0.0-39-generic.drv'...