Comment # 5 on bug 1223169 from Bernhard Wiedemann

Here is a reproducer:

osc co openSUSE:Factory/gcc14 && cd $_
osc build --noservice --clean -j1 --disable-debuginfo standard x86_64

failed after 111s on a fast machine.
It runs in a 1-core VM, so poorly defined dependencies can cause issues
that don't appear in our normal -j4 builds.