package docker.io (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1

[Yonsy]

problem when uninstall docker, btrfs base partition but I have user_rm_allowed in my /etc/fstab. I can remove the packages, but I need to remove manually the subvolumes.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: docker.io (not installed)
ProcVersionSignature: Ubuntu 4.10.0-37.41~16.04.1-generic 4.10.17
Uname: Linux 4.10.0-37-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
Date: Mon Oct 23 11:45:57 2017
ErrorMessage: subprocess installed post-removal script returned error exit status 1
InstallationDate: Installed on 2016-12-09 (318 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.24
SourcePackage: docker.io
Title: package docker.io (not installed) failed to install/upgrade: subprocess installed post-removal script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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