this derivation will be built:
  /nix/store/xsn03ws0h78z1bmwb91376wfvly7plqq-bcachefs-module-7.2.9-arch1-1.drv
building '/nix/store/xsn03ws0h78z1bmwb91376wfvly7plqq-bcachefs-module-7.2.9-arch1-1.drv'...