Your package rubygem-cocaine failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=7000130 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 906027 [details] build.log
Created attachment 906028 [details] root.log
Created attachment 906029 [details] state.log
The cocain gem was trying to load ActiveRecord::BufferedLog during its test suite, and this class is gone in Rails 4.0. The upstream commit to fix this in cocaine is https://github.com/thoughtbot/cocaine/commit/750db8031f2ea89bd6c3765ab8bf4848e272bec1 , but that is not in any released version yet. I've included this patch in the upcoming rubygem-cocaine-0.5.4-3. Git commit: http://pkgs.fedoraproject.org/cgit/rubygem-cocaine.git/commit/?id=f78dc9aea8f04c713d4157aaa753ec59053dcf23 F22 build: http://koji.fedoraproject.org/koji/taskinfo?taskID=8072600 F21 build: http://koji.fedoraproject.org/koji/taskinfo?taskID=8072602
rubygem-cocaine-0.5.4-3.fc21 has been submitted as an update for Fedora 21. https://admin.fedoraproject.org/updates/rubygem-cocaine-0.5.4-3.fc21
Package rubygem-cocaine-0.5.4-3.fc21: * should fix your issue, * was pushed to the Fedora 21 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing rubygem-cocaine-0.5.4-3.fc21' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2014-14615/rubygem-cocaine-0.5.4-3.fc21 then log in and leave karma (feedback).
rubygem-cocaine-0.5.4-3.fc21 has been pushed to the Fedora 21 stable repository. If problems still persist, please make note of it in this bug report.