this derivation will be built:
  /nix/store/kl4jv76bd2g4pqa8h3cr48lbmqf2bg21-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/kl4jv76bd2g4pqa8h3cr48lbmqf2bg21-bcachefs-module-7.0.0-38-generic.drv'...