Subject: bug#46452: [core-updates] FTP download failure for agg

From: Leo Famulari <[email-masked]>
Date: Thu, 11 Feb 2021 19:29:09 -0500

On Fri, Feb 12, 2021 at 12:23:11AM +0100, Danny Milosavljevic wrote:
> building /gnu/store/6smkn7dk6m8w7h7yw0v0lfn0w72q4zxm-agg-2.5.tar.gz.drv...
> 
> Starting download of /gnu/store/8pgqgdcmc10ncj8bhkyi5ilx6mmfk8y1-agg-2.5.tar.gz
> From ftp://ftp.fau.de/gentoo/distfiles/agg-2.5.tar.gz...
> Throw to key `ftp-error' with args `(#<input-output: socket 13> "PASV" 501 "PASV: Operation not permitted\r")'.

I recommend switching it to use HTTP(S) if possible. FTP is flaky and
often blocked on corporate networks.