this derivation will be built:
  /nix/store/akax6qcfjnp0swzh6xj3c1cxmjpy32ih-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/akax6qcfjnp0swzh6xj3c1cxmjpy32ih-bcachefs-module-7.0.0-31-generic.drv'...