Source: qtwebsockets-opensource-src
Version: 5.12.3-1
(Also relevant for versions in unstable and testing, for what it's worth)
Builds of qtwebsockets-opensource-src fail some test(s) due to the rather special network setup on the system. This would be easy to remedy by just building with the "nocheck" profile. But due to debhelper only skipping tests in dh-auto-test but not before trying override_dh_auto_test (see #568897), the code in debian/rules of at least qtwebsockets-opensource-src is _not_ actually skipping tests when nocheck is used.
The contents of override_dh_auto_test should be wrapped in
ifeq ($(filter nocheck, $(DEB_BUILD_OPTIONS)),)
....
endif