Failure in count6.js during sharding_passthrough

 m30999| Sun May 27 06:25:39 [conn1] DROP: test.jstests_count6

 m30001| Sun May 27 06:25:39 [conn13] CMD: drop test.jstests_count6

 m30001| Sun May 27 06:25:39 [conn13] build index done.  scanned 0 total records. 0 secs

 m30001| Sun May 27 06:25:39 [conn13] build index test.jstests_count6 { _id: 1 }

 m30001| Sun May 27 06:25:39 [conn13] info: creating collection test.jstests_count6 on add index

 m30001| Sun May 27 06:25:39 [conn13] build index done.  scanned 0 total records. 0 secs

 m30001| Sun May 27 06:25:39 [conn13] build index test.jstests_count6 { b: 1.0, a: 1.0 }

Error("Printing Stack Trace")@:0

()@src/mongo/shell/utils.js:37

("[1] != [0] are not equal : undefined")@src/mongo/shell/utils.js:58

(1,0)@src/mongo/shell/utils.js:88

assert: [1] != [0] are not equal : undefined

checkCounts([object Object],2)@jstests/count6.js:23

@jstests/count6.js:58

[1] != [0] are not equal : undefined

Sun May 27 06:25:39 Error: error loading js file: jstests/count6.js /Users/erh/work/buildbot/OS_X_105_64bit_Nightly/mongo/jstests/slowNightly/sharding_passthrough.js:84

checkCountForObject([object Object])@jstests/count6.js:39

failed to load: /Users/erh/work/buildbot/OS_X_105_64bit_Nightly/mongo/jstests/slowNightly/sharding_passthrough.js