It seems that the abridging feature proves to be quite hard to neuter, even after #8391. While running with pytest==6.2.4, i can still see how assertions are abridged and I fail to see what was the real error causing them, even when running with -vv mode.

result is a CompletedProcess, one with multi-ling stdout.stderr and is essential to display it in full in order to get an idea about what went wrong.

Note that even tried -vvv and -vvvv without any visible outcome. Did I miss something?