GetVolumeInformation failed

The claimed credit is based on benchmarks that may give complete nonsense on emulators such as Wine. You will get the median credit of a Quorum for your results, so no need to worry too much about it.

After successful computation the output file is compressed before uploading to reduce the upload size. If the compression fails (like in your case) the file is uploaded uncompressed. The Validator will correctly handle both types of uploaded files. So both issues shouldn't pose serious problems for you.

I have, however, no idea why the compression fails on (your) Wine. Which version of Wine are you using?

BM