Errors are like: 

[  379s] ---- cmdline::rsvg_convert::pdf_has_link_inside_text stdout ----
[  379s] thread 'cmdline::rsvg_convert::pdf_has_link_inside_text' panicked at
'Unexpected stdout, failed (is a PDF with a link to https://example.com && is a
PDF with a link to https://another.example.com)
[  379s] ��������������������������� is a PDF with a link to https://example.com
[  379s]     ��������������������������� actual link contents: FIXME: who knows, but it's not what we
expected
[  379s]
command=`"/home/abuild/rpmbuild/BUILD/librsvg-2.55.1/target/release/rsvg-convert"
"--format=pdf" "tests/fixtures/cmdline/text-a-link.svg"`
[  379s] code=0