this derivation will be built:
  /nix/store/ail3hlbk7s4idp84jvaxszhw69q6nzpl-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/ail3hlbk7s4idp84jvaxszhw69q6nzpl-bcachefs-module-7.0.0-29-generic.drv'...