Fix incomplete error handing in races test. (#587)
Fix incomplete error handing in races test. (#587)

Previously it could crash with SEGV or give an incorrect result.
daviddrysdale/certificate-transparency-go,daviddrysdale/certificate-transparency-go,daviddrysdale/certificate-transparency-go,google/certificate-transparency-go,RJPercival/certificate-transparency-go,RJPercival/certificate-transparency-go,RJPercival/certificate-transparency-go,google/certificate-transparency-go,google/certificate-transparency-go