tests-passed yields an error on multisite:migrate for us, in the new concurrency code.
@sam do you have any idea? Seems like this happens when executing external programs and stdout is being flushed implicitly somewhere. Maybe an empty flush method would do the job.
EDIT @tgxworld this seems to be caused by this commit in the discobot plugin.
Stack trace:
#<NoMethodError: undefined method `flush' for #<StdOutDemux:0x000055b719726458>>
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim/cmd.rb:43:in ``'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim/cmd.rb:43:in `capture'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim/config.rb:205:in `processor_count'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim/config.rb:109:in `threads'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim.rb:86:in `block in initialize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim.rb:85:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/discourse_image_optim-0.26.2/lib/image_optim.rb:85:in `initialize'
/var/www/discourse/lib/file_helper.rb:109:in `new'
/var/www/discourse/lib/file_helper.rb:109:in `block in image_optim'
/var/www/discourse/lib/file_helper.rb:128:in `memoize'
/var/www/discourse/lib/file_helper.rb:103:in `image_optim'
/var/www/discourse/lib/file_helper.rb:94:in `optimize_image!'
/var/www/discourse/lib/upload_creator.rb:348:in `optimize!'
/var/www/discourse/lib/upload_creator.rb:59:in `block in create_for'
/var/www/discourse/lib/distributed_mutex.rb:33:in `block in synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:29:in `synchronize'
/var/www/discourse/lib/distributed_mutex.rb:14:in `synchronize'
/var/www/discourse/lib/upload_creator.rb:37:in `create_for'
/var/www/discourse/app/models/user_avatar.rb:118:in `create_custom_avatar'
(eval):55:in `block (3 levels) in run_file'
(eval):54:in `open'
(eval):54:in `block (2 levels) in run_file'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:46:in `eval'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:46:in `block (2 levels) in run_file'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:58:in `block in open'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:57:in `open'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:57:in `open'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:36:in `block in run_file'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/database_statements.rb:281:in `block in transaction'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/transaction.rb:280:in `block in within_new_transaction'
/usr/share/rvm/rubies/ruby-2.6.3/lib/ruby/2.6.0/monitor.rb:230:in `mon_synchronize'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/transaction.rb:278:in `within_new_transaction'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/connection_adapters/abstract/database_statements.rb:281:in `transaction'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/activerecord-6.0.2.2/lib/active_record/transactions.rb:212:in `transaction'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:35:in `run_file'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:26:in `block in run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:25:in `each'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu/runner.rb:25:in `run'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/seed-fu-2.3.9/lib/seed-fu.rb:29:in `seed'
/var/www/discourse/lib/tasks/db.rake:130:in `block (4 levels) in <top (required)>'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rails_multisite-2.1.1/lib/rails_multisite/connection_management.rb:259:in `with_connection'
/var/www/discourse/vendor/bundle/ruby/2.6.0/gems/rails_multisite-2.1.1/lib/rails_multisite/connection_management.rb:61:in `with_connection'
/var/www/discourse/lib/tasks/db.rake:126:in `block (3 levels) in <top (required)>'