expect trait object to implement Sync
expect trait object to implement Sync

riginding/dora,dinfuehr/dora,dinfuehr/dora,dinfuehr/dora,riginding/dora,riginding/dora,riginding/dora,riginding/dora,riginding/dora,dinfuehr/dora,riginding/dora,dinfuehr/dora,dinfuehr/dora