this derivation will be built:
  /nix/store/d9j3n9dx7wfkqrqfs3q2yih8a8bz858l-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/d9j3n9dx7wfkqrqfs3q2yih8a8bz858l-bcachefs-module-7.0.0-29-generic.drv'...