Hi, During a rebuild of all packages in sid, your package failed to build on arm64 (I don't know if it also fails on amd64). Relevant part (hopefully): http://qa-logs.debian.net/2020/12/05/vg_1.27.1+ds-1_unstable.log A list of current common problems and possible solutions is available at http://wiki.debian.org/qa.debian.org/FTBFS . You're welcome to contribute! If you reassign this bug to another package, please marking it as 'affects'-ing this package. See https://www.debian.org/Bugs/server-control#affects If you fail to reproduce this, please provide a build log and diff it with me so that we can identify if something relevant changed in the meantime. About the archive rebuild: The rebuild was done on EC2 VM instances from Amazon Web Services, using a clean, minimal and up-to-date chroot. Every failed build was retried once to eliminate random failures.