Created attachment 859824 [details]
the build log
It just fails to upload as part of the emerge -auDN @world
Created attachment 859825 [details]
Created attachment 859826 [details]
I'm also experiencing this bug. In ffmpeg-4.4.4-r3 it's not in line 27, but line 36.
I think this one might be a dupe of bug 782553 which is a race?
*** This bug has been marked as a duplicate of bug 782553 ***