[rdiff-backup-users] Uh-oh, IOError in 1.0.0, oh, no!

[JonathanSmith]

First backup after upgrading to version 1.0.0. and after recently upgrading from FC3 -> FC4. 
(During the transition I lacked rdiff-backup, but was able to reinstall 0.12.7-3 on the new FC4 system.
1.0.0 was installed from source, which meant manually moving files and 
directories, so I entertain
the possibility of /non compos user/.)

A number of these warnings occurred at first:

Warning: Could not restore file /mnt/e3/etc/alsa/sndo-mixer.alisp!

"A regular file was indicated by the metadata, but could not be
constructed from existing increments because last increment had type
None.  Instead of the actual file's data, an empty length file will be
created.  This error is probably caused by data loss in the
rdiff-backup destination directory, or a bug in rdiff-backup"

I thought that they might have to do with the upgrade. The backup did seem to proceed. 
The next morning when I came back to the PC, I found this error report:

Traceback (most recent call last):
 File "/usr/bin/rdiff-backup", line 23, in ?
   rdiff_backup.Main.Main(sys.argv[1:])
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 282, in Main
   take_action(rps)
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 252, in 
take_action
   elif action == "backup": Backup(rps[0], rps[1])
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 296, in 
Backup
   backup_final_init(rpout)
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 393, in 
backup_final_init
   checkdest_if_necessary(rpout)
 File "/usr/lib/python2.4/site-packages/rdiff_backup/Main.py", line 881, in 
checkdest_if_necessary
   dest_rp.conn.regress.Regress(dest_rp)
 File "/usr/lib/python2.4/site-packages/rdiff_backup/regress.py", line 70, in 
Regress
   for rf in iterate_meta_rfs(mirror_rp, inc_rpath): ITR(rf.index, rf)
 File "/usr/lib/python2.4/site-packages/rdiff_backup/regress.py", line 162, in 
iterate_meta_rfs
   for raw_rf, metadata_rorp in collated:
 File "/usr/lib/python2.4/site-packages/rdiff_backup/rorpiter.py", line 100, in 
Collate2Iters
   try: relem2 = riter2.next()
 File "/usr/lib/python2.4/site-packages/rdiff_backup/metadata.py", line 256, in 
iterate
   next_pos = self.get_next_pos()
 File "/usr/lib/python2.4/site-packages/rdiff_backup/metadata.py", line 247, in 
get_next_pos
   newbuf = self.fileobj.read(self.blocksize)
 File "/usr/lib/python2.4/gzip.py", line 224, in read
   self._read(readsize)
 File "/usr/lib/python2.4/gzip.py", line 272, in _read
   self._read_eof()
 File "/usr/lib/python2.4/gzip.py", line 308, in _read_eof
   raise IOError, "CRC check failed"
IOError: CRC check failed