MCI Logs here: http://mci.10gen.com/ui/task/mongodb_mongo_master_linux_64_debug_024a6739ac52ce669bff42b8782484f27a8cbc34_13_12_02_14_14_05_js_linux_64

Buildlogger: http://buildlogs.mongodb.org/mci_0.9_linux_64_debug/builds/19721/test/js_0/block_check_supported.js

The test does a check for the "name" field from db.hostInfo().os which appears to have been a temporary fix pending SERVER-9325. On our linux-64 AMI, this field is unset and thus causes the test to fail (even though the commands being tested are supported). I don't think this code path is necessary any longer.