this derivation will be built:
  /nix/store/4mk9zivsgrvh3yqnnf9zi0vl6bcg4wsk-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/4mk9zivsgrvh3yqnnf9zi0vl6bcg4wsk-bcachefs-module-7.0.0-39-generic.drv'...