Who are these guys?

[Jan Djärv]

26 maj 2014 kl. 18:40 skrev Hydra Build Daemon <address@hidden>:

> Hi,
> 
> The status of Hydra job gnu:emacs-trunk:coverage (on x86_64-linux) has 
> changed from "Success" to "Failed".  For details, see
> 
>  http://hydra.nixos.org/build/11243681
> 
> This is likely due to 28 commits by Arseniy Seroka <address@hidden>, Bjørn 
> Forsman <address@hidden>, Charles Strahan <address@hidden>, Domen Kožar 
> <address@hidden>, Jaka Hudoklin <address@hidden>, Jason "Don" O'Conal 
> <address@hidden>, Luca Bruno <address@hidden>, Matej Cotman <address@hidden>, 
> Mateusz Kowalczyk <address@hidden>, Rickard Nilsson <address@hidden>, Thomas 
> Tuegel <address@hidden>, lethalman <address@hidden>, wmertens 
> <address@hidden> or 宋文武 <address@hidden>.

Who are these people? AFAIK, they never committed anything in Emacs.
Does Hydra invent random names in these mails?

        Jan D.