CI idle for aarch64?

[Brennan Vincent]

Hi,

While trying to understand why I can't build Skia on aarch64 (see
https://issues.guix.gnu.org/issue/73659) , I tried looking at the logs
in CI. The Skia build is listed as "Scheduled":
http://ci.guix.gnu.org/build/5915482/details . But nothing is being
built on any of the aarch64 currently. So why has the build not started?