Created attachment 697005 [details] build.log When downloading the sources for dev-lisp/trivial-backtrace::lisp, Portage fails to check that the downloaded files are the correct ones (a size mismatch), as seen in the attached build.log.
Created attachment 697008 [details] emerge --info Output of emerge --info dev-lisp/trivial-backtrace::lisp
Now the package file can’t be fetched, probably because the package is abandoned upstream. There is a tgz at the official site (can’t post the link), but it does not match the expected file.