FYI a full download of the 0.17.54 version worked.

I ran the factorio updater script (https://github.com/narc0tiq/factorio-updater) to update my headless server, but the update file it downloaded was a corrupted zip file. I tried to unzip it:

End-of-central-directory signature not found. Either this file is not
a zipfile, or it constitutes one ...