Bug#834250: btfs: FTBFS: btfs.cc:580:19: error: no match for 'operator=' (operand types are 'boost::shared_ptr' and 'libtorrent::torrent_info*')

[peter green]

It looks like this has been fixed upstream

https://github.com/johang/btfs/issues/28
However my attempts to backport the fixes failed to result in a 
succesful build. Maybe it's time for the maintainer to update the 
package to a newer upstream.