Ignore future jobs in jobs:check.

If there are scheduled jobs in the future, they should not be included in the jobs:check, which is intended to look for jobs that should be processed but have not yet been processed.

lib/delayed/tasks.rb

@@ -30,7 +30,7 @@
   task :check, [:max_age, :not_locked] => :environment do |_, args|
     args.with_defaults(:max_age => 300, :not_locked => false)
 
-    unprocessed_jobs = Delayed::Job.where('attempts = 0 AND created_at < ?', Time.now - args[:max_age].to_i)
+    unprocessed_jobs = Delayed::Job.where('attempts = 0 AND created_at < ? AND run_at <= ?', Time.now - args[:max_age].to_i, Time.now)
     unprocessed_jobs = unprocessed_jobs.where('locked_at IS NULL') if args[:not_locked]
     unprocessed_jobs = unprocessed_jobs.count