runtime/race: print output when TestRace parsing fails

Change-Id: I986f0c106e059455874692f5bfe2b5af25cf470e
Reviewed-on: https://go-review.googlesource.com/39090
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

diff --git a/src/runtime/race/race_test.go b/src/runtime/race/race_test.go
index 8cdf52d10245c665d1311ec648c6c82888f5120a..a0b8531b42e43ef1021bfec440f7039e1750cd28 100644 (file)
--- a/src/runtime/race/race_test.go
+++ b/src/runtime/race/race_test.go
@@ -68,7 +68,7 @@ func TestRace(t *testing.T) {
        }
 
        if totalTests == 0 {
-               t.Fatalf("failed to parse test output")
+               t.Fatalf("failed to parse test output:\n%s", testOutput)
        }
        fmt.Printf("\nPassed %d of %d tests (%.02f%%, %d+, %d-)\n",
                passedTests, totalTests, 100*float64(passedTests)/float64(totalTests), falsePos, falseNeg)