[committed buildbot patch] Replace the aarch64 build slave

[Joseph Myers]

On Tue, 9 Oct 2018, Szabolcs Nagy wrote:

> the first build is red, there are two failures, both are timeouts:
> 
> libio/tst-readline takes more than 80s
> nss/tst-nss-files-hosts-multi takes about 30s
> 
> i assume it's ok to set TIMEOUTFACTOR=5 in the bot environment
> or should we raise the TIMEOUT of these particular tests?

If only a few tests are timing out, and there are good reasons for them to 
time out on slow systems (amount of processing or I/O involved), then I 
think raising those tests' TIMEOUT is appropriate.

-- 
Joseph S. Myers
joseph@codesourcery.com