Changes

Summary

1. more arg_min
2. no exit code from build processes by default, e.g. relevant for non-strict results of remote_build_history;
3. tuned;
4. clarified build errors; tuned signature;
5. tuned layout;
6. tuned signature;
7. tuned signature;
8. tuned signature;
9. tuned signature;
10. clarified signature;