Your package m2crypto failed to build from source in current rawhide. http://koji.fedoraproject.org/koji/taskinfo?taskID=6951813 For details on mass rebuild see https://fedoraproject.org/wiki/Fedora_21_Mass_Rebuild
Created attachment 904015 [details] build.log
Created attachment 904016 [details] root.log
Created attachment 904017 [details] state.log
A X509_name_hash_old() return value differs because the DER encoding of a X509_NAME differs because global_mask in crypto/asn1/a_strnid.c changed from 0xFFFFFFFFL to B_ASN1_UTF8STRING between OpenSSL 1.0.1e and 1.0.1h. Asked Tomáš whether this was an intended change.
Fixed in m2crypto-0.21.1-17.fc21 . Thanks for your report.