https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81358
--- Comment #28 from Sam James <sjames at gcc dot gnu.org> --- Gah, I have to apologise. I spent a while trying to craft a Dockerfile and it worked every time. I got suspicious, tried a regular build in packaging, using the same method of fetching the patch as the Dockerfile and it worked. It turned out that when I used `b4 shazam` on the ML thread, it picked up the wrong version. Fetching it manually using the attachment seems to be working fine - I'll let you know of any problems, but for now, please assume everything's fine. Sorry for the false alarm!