one of those lines failed, not sure why
	dh_auto_install
	# Remove rpath from the offending binaries
	chrpath -d $(CURDIR)/debian/tmp/usr/lib/$(DEB_HOST_MULTIARCH)/qt5/libexec/QtWebEngineProcess
Please try to reproduce the bug

Hi!

Qt 5 is in maintenance mode and I have already started the effort of removing
it from Debian. So I won’t be adding support for any new architectures to it.

For Qt WebEngine 6, there is a bug about ppc64el support (#1101034), but as
Soren mentioned, someone should try to get it supported in upstream Chromium
and/or Qt WebEngine first.

This bug is not RC because qtwebengine-opensource-src never built successfully
on ppc64el.