tracker-miner-fs crashes on startup

Tracker does not index anything. When I try to track down the bug, it turns out that tracker-miner-fs crashes immediately, regardless of what I ask it to index. Note in particular that I did not ask it to index removable media or any directory that is on an SFTP mount, so I don't think this is the same as bug #973088. I tried running it under gdb, but there doesn't seem to be a -dbg version of the package. The output from simply running it:

peridot@cuttlefish$ /usr/lib/tracker/tracker-miner-fs -v 3
Initializing tracker-miner-fs...
Tracker-Message: Setting up monitor for changes to config file:'/home/peridot/.config/tracker/tracker-miner-fs.cfg'
Tracker-Message: tracker-miner-fs 0.14.0
Starting log:
  File:'/home/peridot/.local/share/tracker/tracker-miner-fs.log'
Tracker-Message: General options:
Tracker-Message: Verbosity ............................ 3
Tracker-Message: Sched Idle ........................... 2
Tracker-Message: Initial Sleep ........................ 15
Tracker-Message: Indexer options:
Tracker-Message: Throttle level ....................... 0
Tracker-Message: Indexing while on battery ............ no (first time only = yes)
Tracker-Message: Low disk space limit ................. Disabled
Tracker-Message: Setting priority nice level to 19
Tracker-Message: Checking if we're running as a daemon:
Tracker-Message: Yes
Tracker-Message: Setting database locations
Tracker-Message: Checking database files exist
Tracker-Message: Opened sqlite3 database:'/home/peridot/.cache/tracker/meta.db'
Tracker-Message: Setting page size to 8192
Tracker-Message: Setting cache size to 250
Tracker-Message: Setting up monitor for changes to config file:'/home/peridot/.config/tracker/tracker-miner-fs.cfg'
Tracker-Message: Monitor backend is Inotify
Tracker-Message: Monitor limit is 65036
Tracker-Message: Initializing Storage...
Tracker-Message: Mount monitors set up for to watch for added, removed and pre-unmounts...
Tracker-Message: Initializing UPower...
Tracker-Message: Registering D-Bus object...
Tracker-Message: Path:'/org/freedesktop/Tracker1/Miner/Files'
Tracker-Message: Object Type:'TrackerMinerFiles'
**
Tracker:ERROR:tracker-file-system.c:483:tracker_file_system_get_file: assertion failed: (parent_node != NULL)
Aborted (core dumped)

peridot@cuttlefish$ tracker-control -s
Starting miners…

(tracker-control:9463): Tracker-CRITICAL **: Could not create proxy on the D-Bus session bus, Error calling StartServiceByName for org.freedesktop.Tracker1.Miner.Applications: GDBus.Error:org.freedesktop.DBus.Error.Spawn.ChildSignaled: Process /usr/lib/tracker/tracker-miner-fs received signal 6
  ✗ File System (perhaps a disabled plugin?)

(tracker-control:9463): Tracker-CRITICAL **: No D-Bus proxy found for miner 'org.freedesktop.Tracker1.Miner.Applications'
  ✗ Applications (perhaps a disabled plugin?)
  ✗ Emails (perhaps a disabled plugin?)

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: tracker-miner-fs 0.14.0-2ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.37-generic 3.2.14
Uname: Linux 3.2.0-24-generic x86_64
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Sun May 20 12:41:05 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release amd64 (20101007)
ProcEnviron:
 LANGUAGE=en_CA:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_CA.UTF-8
 SHELL=/bin/bash
SourcePackage: tracker
UpgradeStatus: Upgraded to precise on 2012-04-27 (22 days ago)