Created attachment 830707 [details]
=x11-libs/gdk-pixbuf-2.42.10 fails its test phase for me. After showing seven "OK" tests in the standard(?) Meson test-runner format, the log shows two screens of multiple Python stack traces for asyncio.exceptions.CancelledError and asyncio.exceptions.TimeoutError, followed by a summary of 7 "Ok" and "0" failures, and then "ERROR: Unhandled python exception This is a Meson bug and should be reported!"
Created attachment 830709 [details]
I'm not sure I understand what this means or how it works, but I *do* know you're not the only one to see this, because it was also submitted as https://github.com/mesonbuild/meson/issues/10752
Unfortunately I'm not deeply familiar with that part of the Meson codebase so I never investigated closely. Obviously, it's situation-dependent whether it will error out at all...