When trying to install into 1.521 the following exception is thrown:
hudson.util.IOException2: Failed to dynamically deploy this plugin
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1314)
at hudson.model.UpdateCenter$DownloadJob.run(UpdateCenter.java:1111)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1146)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:679)
Caused by: hudson.util.IOException2: Failed to install rvm plugin
at hudson.PluginManager.dynamicLoad(PluginManager.java:417)
at hudson.model.UpdateCenter$InstallationJob._run(UpdateCenter.java:1310)
... 7 more
Caused by: hudson.util.IOException2: Failed to initialize
at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:379)
at hudson.PluginManager.dynamicLoad(PluginManager.java:408)
... 8 more
Caused by: java.lang.Exception: unable to locate gem bundle for rvm at /home/jenkins/plugins/rvm/WEB-INF/classes/vendor/gems
at ruby.RubyPlugin.initRubyLoadPaths(RubyPlugin.java:202)
at ruby.RubyPlugin.start(RubyPlugin.java:158)
at hudson.ClassicPluginStrategy.startPlugin(ClassicPluginStrategy.java:387)
at hudson.ClassicPluginStrategy.load(ClassicPluginStrategy.java:376)
... 9 more