this derivation will be built:
  /nix/store/c9w2b139z7cmjv8msmij8xqfc9kwzwch-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/c9w2b139z7cmjv8msmij8xqfc9kwzwch-bcachefs-module-7.0.0-29-generic.drv'...