[Tracker] DBus timeout messages

[Jonas Bonn <jonas bonn gmail com>]

I'm testing out Tracker 0.7.2, but I'm getting a lot of these warnings
when running tracker-miner-fs

(tracker-miner-fs:10696): Tracker-WARNING **: Error running sparql
queries: Message did not receive a reply (timeout by message bus)

Additionally there are a bunch of these, so I'd say the tracker-store
daemon is not totally dead...

(tracker-miner-fs:10696): Tracker-WARNING **: Error running sparql
queries: Subject `file:///FILENAME_REDACTED.flac' is not in domain
`nfo:Media' of property `nfo:duration'

Any ideas what might be wrong?