hydra.gnu.org and mirror.hydra.gnu.org service discontinued

["Ludovic Courtès" <ludo@gnu.org>]

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Hello Guix,

After seven years of service, the continuous integration service and
‘guix publish’ service running at hydra.gnu.org, as well as its mirror
at mirror.hydra.gnu.org, are now discontinued.

As a reminder, starting from Guix 0.16.0 in December 2018¹, the default
host for substitutes and for continuous integration is ci.guix.gnu.org, a
mirror of berlin.guix.gnu.org, which was formerly known as ci.guix.info.


Many thanks to everyone who helped maintain this service over the years,
and in particular to Mark H Weaver for all the energy put into making it
run as smoothly as possible!

For the record, hydra.gnu.org used to run Hydra² for continuous
integration, on top of Trisquel; ci.guix.gnu.org runs Cuirass on Guix
and you can find its complete configuration in maintenance.git³.

Ludo’.

¹ https://gnu.org/s/guix/blog/2018/gnu-guix-and-guixsd-0.16.0-released/
² https://nixos.org/hydra/
³ https://git.savannah.gnu.org/cgit/guix/maintenance.git/tree/hydra/

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