Hmmm... This one is nasty...
On Debian testing running on core i5 + 8 GB RAM, upgrading from 8.9.rc0, I get:
Transient errors:
src/sage/combinat/posets/posets.py 1 doctest failed
src/sage/plot/animate.py 7 doctests failed
src/sage/combinat/matrices/hadamard~matrix~.py 2 doctests failed
src/sage/misc/latex.py 1 doctest failed
src/sage/misc/persist.pyx 2 doctests failed
src/sage/coding/databases.py 2 doctests failed
src/sage/repl/load.py 1 doctest failed
src/sage/graphs/graph~latex~.py 2 doctests failed
src/sage/databases/findstat.py 9 doctests failed
src/sage/misc/remote~file~.py 2 doctests failed
src/sage/combinat/designs/ext~rep~.py 1 doctest failed
src/sage/interfaces/magma~free~.py 2 doctests failed
src/sage/interfaces/mathematica.py Timed out
Permanent errors, already known:
src/sage/libs/eclib/interface.py 1 doctest failed
src/sage/rings/polynomial/polynomial~rationalflint~.pyx 1 doctest failed
New permanent errors due to aborts:
src/sage/crypto/mq/sr.py Killed due to abort
src/sage/rings/polynomial/multi~polynomialsequence~.py Killed due to abort
src/sage/rings/polynomial/pbori.pyx Killed due to abort
src/sage/rings/polynomial/polynomial~ringconstructor~.py Killed due to abort
src/sage/sat/solvers/dimacs.py Killed due to abort
src/doc/en/reference/sat/index.rst Killed due to abort
src/sage/sat/boolean~polynomials~.py Killed due to abort
Details in SageTstAborts (attached).
Looking at those details, in all but one case, the abort is a "length error":
src/sage/crypto/mq/sr.py terminate called after throwing an instance of \'std::length~error~\'
src/sage/rings/polynomial/multi~polynomialsequence~.py terminate called after throwing an instance of \'std::length~error~\'
src/sage/rings/polynomial/pbori.pyx terminate called after throwing an instance of \'std::bad~alloc~\'
terminate called recursively
src/sage/rings/polynomial/polynomial~ringconstructor~.py terminate called after throwing an instance of \'std::length~error~\'
src/sage/sat/solvers/dimacs.py terminate called after throwing an instance of \'std::length~error~\'
src/doc/en/reference/sat/index.rst terminate called after throwing an instance of \'std::length~error~\'
src/sage/sat/boolean~polynomials~.py terminate called after throwing an instance of \'std::length~error~\'
The exception in pbori.pyx, seems to be multiple errors.
I suppose tat something may be broken in my setup. Hints about how to unhose my system are welcome...
HTH,