Error during installation of apt-xapian-index

[Norbert]

Log:
   sudo apt-get install apt-xapian-index
   Reading package lists... Done
   Building dependency tree
   Reading state information... Done
   The following additional packages will be installed:
     libxapian-1.3-5 python3-xapian1.3
   Suggested packages:
     xapian-tools xapian-doc
   The following NEW packages will be installed:
     apt-xapian-index libxapian-1.3-5 python3-xapian1.3
   0 upgraded, 3 newly installed, 0 to remove and 0 not upgraded.
   Need to get 1 267 kB of archives.
   After this operation, 6 974 kB of additional disk space will be used.
   Do you want to continue? [Y/n]
   Get:1 http://ru.archive.ubuntu.com/ubuntu xenial/universe i386 libxapian-1.3-5 i386 1.3.4-0ubuntu6 [853 kB]
   Get:2 http://ru.archive.ubuntu.com/ubuntu xenial/universe i386 python3-xapian1.3 i386 1.3.4-0ubuntu1 [356 kB]
   Get:3 http://ru.archive.ubuntu.com/ubuntu xenial/universe i386 apt-xapian-index all 0.47ubuntu8 [57,4 kB]
   Fetched 1 267 kB in 2s (528 kB/s)
   Selecting previously unselected package libxapian-1.3-5:i386.
   (Reading database ... 311703 files and directories currently installed.)
   Preparing to unpack .../libxapian-1.3-5_1.3.4-0ubuntu6_i386.deb ...
   Unpacking libxapian-1.3-5:i386 (1.3.4-0ubuntu6) ...
   Selecting previously unselected package python3-xapian1.3.
   Preparing to unpack .../python3-xapian1.3_1.3.4-0ubuntu1_i386.deb ...
   Unpacking python3-xapian1.3 (1.3.4-0ubuntu1) ...
   Selecting previously unselected package apt-xapian-index.
   Preparing to unpack .../apt-xapian-index_0.47ubuntu8_all.deb ...
   Unpacking apt-xapian-index (0.47ubuntu8) ...
   Processing triggers for libc-bin (2.23-0ubuntu3) ...
   Processing triggers for doc-base (0.10.7) ...
   Processing 1 added doc-base file...
   Error in `/usr/share/doc-base/xapian-python3-docs', line 9: all `Format' sections are invalid.
   Note: `install-docs --verbose --check file_name' may give more details about the above error.
   Registering documents with scrollkeeper...
   Processing triggers for dbus (1.10.6-1ubuntu3) ...
   Processing triggers for man-db (2.7.5-1) ...
   Setting up libxapian-1.3-5:i386 (1.3.4-0ubuntu6) ...
   Setting up python3-xapian1.3 (1.3.4-0ubuntu1) ...
   Setting up apt-xapian-index (0.47ubuntu8) ...
   apt-xapian-index: Building new index in background...
   Processing triggers for libc-bin (2.23-0ubuntu3) ...
   Processing triggers for dbus (1.10.6-1ubuntu3) ...

Error here is:
   Error in `/usr/share/doc-base/xapian-python3-docs', line 9: all `Format' sections are invalid.
   Note: `install-docs --verbose --check file_name' may give more details about the above error.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: python3-xapian1.3 1.3.4-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8
Uname: Linux 4.4.0-22-generic i686
ApportVersion: 2.20.1-0ubuntu2
Architecture: i386
CurrentDesktop: Unity
Date: Sun May 15 20:10:10 2016
InstallationDate: Installed on 2016-04-21 (23 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release i386 (20160420.1)
SourcePackage: xapian1.3-bindings
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.