What does this mean on this page?
To tag an issue as appropriate for an ICE-breaker group, you give rustbot a ping command with the name of the ICE-breakers team. For example:
Note though that this should only be done by compiler team members or contributors, and is typically done as part of compiler team triage.
What's the definition of "contributor" - does it have to be someone who's been contributing for a long time?
Yep, I believe that's what it means
Thanks, I'll look at that document!