avocado:82lts cannot be built for Fedora 39 <https://mbs.fedoraproject.org/module-build-service/2/module-builds/15979> because building python-avocado component <https://koji.fedoraproject.org/koji/taskinfo?taskID=99181156> hangs in tests: Executing(%check): /bin/sh -e /var/tmp/rpm-tmp.8AEXCf + umask 022 + cd /builddir/build/BUILD + CFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=z13 -mtune=z14 -fasynchronous-unwind-tables -fstack-clash-protection ' + export CFLAGS + CXXFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=z13 -mtune=z14 -fasynchronous-unwind-tables -fstack-clash-protection ' + export CXXFLAGS + FFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=z13 -mtune=z14 -fasynchronous-unwind-tables -fstack-clash-protection -I/usr/lib/gfortran/modules ' + export FFLAGS + FCFLAGS='-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-U_FORTIFY_SOURCE,-D_FORTIFY_SOURCE=3 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -march=z13 -mtune=z14 -fasynchronous-unwind-tables -fstack-clash-protection -I/usr/lib/gfortran/modules ' + export FCFLAGS + VALAFLAGS=-g + export VALAFLAGS + RUSTFLAGS='-Copt-level=3 -Cdebuginfo=2 -Ccodegen-units=1 -Cforce-frame-pointers=yes -Clink-arg=-Wl,-z,relro -Clink-arg=-Wl,-z,now --cap-lints=warn' + export RUSTFLAGS + LDFLAGS='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -Wl,--build-id=sha1 ' + export LDFLAGS + LT_SYS_LIBRARY_PATH=/usr/lib: + export LT_SYS_LIBRARY_PATH + CC=gcc + export CC + CXX=g++ + export CXX + cd avocado-82.2 + PATH=/builddir/build/BUILDROOT/python-avocado-82.2-1.module_f39+15979+00f1cea4.noarch/usr/bin:/builddir/build/BUILDROOT/python-avocado-82.2-1.module_f39+15979+00f1cea4.noarch/usr/libexec/avocado:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/sbin + PYTHONPATH=/builddir/build/BUILDROOT/python-avocado-82.2-1.module_f39+15979+00f1cea4.noarch/usr/lib/python3.11/site-packages:. + LANG=en_US.UTF-8 + AVOCADO_CHECK_LEVEL=0 + /usr/bin/python3 selftests/run ...................................s..................................................Unable to resolve any reference or 'run.references' is empty. ..................................................................Process Process-5: Traceback (most recent call last): File "/usr/lib64/python3.11/multiprocessing/process.py", line 314, in _bootstrap self.run() File "/usr/lib64/python3.11/multiprocessing/process.py", line 108, in run self._target(*self._args, **self._kwargs) File "/builddir/build/BUILDROOT/python-avocado-82.2-1.module_f39+15979+00f1cea4.noarch/usr/lib/python3.11/site-packages/avocado/core/nrunner.py", line 478, in _run_unittest unittest_result = runner.run(suite) ^^^^^^^^^^^^^^^^^ File "/usr/lib64/python3.11/unittest/runner.py", line 217, in run test(result) File "/usr/lib64/python3.11/unittest/suite.py", line 84, in __call__ return self.run(*args, **kwds) ^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/lib64/python3.11/unittest/suite.py", line 130, in run self._tearDownPreviousClass(None, result) File "/usr/lib64/python3.11/unittest/suite.py", line 315, in _tearDownPreviousClass doClassCleanups() File "/usr/lib64/python3.11/unittest/case.py", line 670, in doClassCleanups while cls._class_cleanups: ^^^^^^^^^^^^^^^^^^^ AttributeError: type object 'TestCase' has no attribute '_class_cleanups' This is not a one-time random failure. I retried the build three times.