Comment 31 for bug 1920665

@Bob Your crash log confirms it is the same issue. It crashes the installer at the try/install stage (what you are reporting, and what results in the message you see) AND when the installer is manually launched from a live session.

At the moment all anyone can do is wait for the result of the mesa uploaders git bisect, to find the commit/cause in the new mesa that landed in the release pocket @ around the 17th of March.