SVG/URI badges fails to convert

[Borda]

I have found recommendation on this extension at Sphinx thread, but it fails on my badges
sphinx-doc/sphinx#4720 (comment)
sample badge - https://travis-ci.org/Borda/BIRL.svg?branch=master
the I have added 'sphinx.ext.imgconverter' to conf.py and run make latexpdf

Extension error:
convert exited with error:
[stderr]
b"convert-im6.q16: delegate failed `'rsvg-convert' -o '%o' '%i'' @ error/delegate.c/InvokeDelegate/1919.\nconvert-im6.q16: unable to open file `/tmp/magick-12213u671hXtMTiQL': No such file or directory @ error/constitute.c/ReadImage/544.\nconvert-im6.q16: no images defined `/home/jb/Dropbox/Workspace/BIRL/docs/build/doctrees/images/BIRL.png' @ error/convert.c/ConvertImageCommand/3258.\n"
[stdout]
b''

[gigi206]

Same issue here