Problem installing docs

[David Sumbler]

I downloaded Lilypond version 2.21.2 today.  When I ran the script with
the --doc option, Lilypond installs but the docs can't be downloaded.

I also tried with version 2.20.1, with the same result.

I get the following output:

No ./Downloads/lilypond-2.21.2-1.documentation.tar.bz2 found, downloading.
--2020-07-10 17:15:04--  
http://lilypond.org/downloads/binaries/documentation/Downloads/lilypond-2.21.2-1.documentation.tar.bz2
Resolving lilypond.org (lilypond.org)... 35.206.114.173
Connecting to lilypond.org (lilypond.org)|35.206.114.173|:80... connected.
HTTP request sent, awaiting response... 404 Not Found
2020-07-10 17:15:04 ERROR 404: Not Found.

Is this a temporary problem with the server, or is there something else I 
should know or do?

David