this derivation will be built:
  /nix/store/ggs25h3fqxqqnl4halmwf0xr00j070qv-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/ggs25h3fqxqqnl4halmwf0xr00j070qv-bcachefs-module-7.0.0-29-generic.drv'...