Hi,

apparently linux-usb sourceforge switched over to SVN - so what you are getting
there is an error page.

Possible fix would be:

diff --git a/gnu/packages/virtualization.scm b/gnu/packages/virtualization.scm
index 55a92eca0..be8a8bb86 100644
--- a/gnu/packages/virtualization.scm
+++ b/gnu/packages/virtualization.scm
@@ -280,7 +280,7 @@ server and embedded PowerPC, and S390 guests.")
        ("usb.ids"
         ,(origin
            (method url-fetch)
-           (uri "http://linux-usb.cvs.sourceforge.net/viewvc/linux-usb/htdocs/usb.ids?revision=1.551")
+           (uri "https://svn.code.sf.net/p/linux-usb/repo/trunk/htdocs/usb.ids?r=1551")
            (file-name "usb.ids")
            (sha256
             (base32