test failing at master (Mac)

[ola-rozenfeld]

TestDownloadActionOutputsConcurrencyUsingBatch consistently fails at master on my Mac:

Executing tests from //go/pkg/client:client_test
-----------------------------------------------------------------------------
--- FAIL: TestDownloadActionOutputsConcurrency (0.00s)
    --- FAIL: TestDownloadActionOutputsConcurrency/TestDownloadActionOutputsConcurrencyUsingBatch:true,UnifiedDownloads:true (20.66s)
        cas_test.go:1633: 75 requests were made to BatchReadBlobs, wanted <= 50
FAIL

Since the BuildKite build is green, I presume it's a Mac issue.