package fontconfig-config 2.12.6-0ubuntu2 failed to install/upgrade: dpkg-deb --control subprocess returned error exit status 2

Trying to upgrade in WSL.

ProblemType: Package
DistroRelease: Ubuntu 18.10
Package: fontconfig-config 2.12.6-0ubuntu2
ProcVersionSignature: Microsoft 4.4.0-17763.253-Microsoft 4.4.35
Uname: Linux 4.4.0-17763-Microsoft x86_64
ApportVersion: 2.20.9-0ubuntu7.5
Architecture: amd64
Date: Fri Feb 8 22:33:57 2019
Dmesg:
 [ 0.007816] Microsoft 4.4.0-17763.253-Microsoft 4.4.35
 [ 0.249297] <3>init: (1) ERROR: ConfigMountDrvfsVolumes:1713: mount O: /mnt/o with options "uid=1000,gid=100
 [ 0.249308] " failed: 22
DuplicateSignature:
 package:fontconfig-config:2.12.6-0ubuntu2
 Unpacking gtk-update-icon-cache (3.24.1-1ubuntu2) over (3.22.30-1ubuntu1) ...
 dpkg-deb: error: tar subprocess was killed by signal (Segmentation fault), core dumped
 dpkg: error processing archive /tmp/apt-dpkg-install-5wk29P/014-fontconfig-config_2.13.0-5ubuntu3_all.deb (--unpack):
  dpkg-deb --control subprocess returned error exit status 2
ErrorMessage: dpkg-deb --control subprocess returned error exit status 2
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.7, python3-minimal, 3.6.7-1~18.10
PythonDetails: /usr/bin/python2.7, Python 2.7.15+, python-minimal, 2.7.15-3
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu5
 apt 1.7.2
SourcePackage: fontconfig
Title: package fontconfig-config 2.12.6-0ubuntu2 failed to install/upgrade: dpkg-deb --control subprocess returned error exit status 2
UpgradeStatus: Upgraded to cosmic on 2019-02-09 (0 days ago)