give mods permissions in the cargo repo

[oli-obk]

Otherwise we can't unhide comments (hiding works amusingly), lock issues, or ban people directly from comments they leave on that repo

cc @rust-lang/mods

[github-actions]

Dry-run check results

[WARN  sync_team] sync-team is running in dry mode, no changes will be applied.
[INFO  sync_team] synchronizing github
[INFO  sync_team] 💻 Repo Diffs:
    📝 Editing repo 'rust-lang/cargo':
      Permission Changes:
        Giving team 'mods' write permission

[weihanglo]

Otherwise we can't unhide comments (hiding works amusingly), lock issues, or ban people directly from comments they leave on that repo

That sounds like a GitHub bug 😅

[ehuss]

Seems like we should automate this (like with a default or something).