How were SyncEvolution and activesyncd installed? What is your Linux distro?

The error indicates that a method in the libeas failed:

    handler = EasSyncHandlerCXX::steal(eas_sync_handler_new(account.c_str()));
    if (!handler) throwError("findCollections cannot allocate sync handler");

Please run:

SYNCEVOLUTION_DEBUG=1 syncevolution --print-databases loglevel=4
username=$email backend=eas-events

What's the output?