2017/08/23 19:43:48.370493 taskrunner.go:367: DEBUG: Running task 848 on Do: Setup snap "xkcd-webserver" (16) security profiles
2017/08/23 19:43:48.437800 cmd.go:134: exe doesn't have snap mount dir prefix: "/usr/lib/snapd/snapd" vs "/snap"
2017/08/23 19:43:48.470083 task.go:303: DEBUG: 2017-08-23T19:43:48+01:00 ERROR cannot setup mount for snap "xkcd-webserver": cannot update mount namespace of snap "xkcd-webserver": cannot update preserved namespace of snap "xkcd-webserver": cannot update snap namespace: cannot switch mount namespace: invalid argument
2017/08/23 19:43:48.496109 task.go:303: DEBUG: 2017-08-23T19:43:48+01:00 ERROR cannot update mount namespace of snap "xkcd-webserver": cannot update preserved namespace of snap "xkcd-webserver": cannot update snap namespace: cannot switch mount namespace: invalid argument
2017/08/23 19:43:48.522967 taskrunner.go:367: DEBUG: Running task 847 on Undo: Copy snap "xkcd-webserver" data
2017/08/23 19:43:48.578451 taskrunner.go:367: DEBUG: Running task 844 on Undo: Download snap "xkcd-webserver" (16) from channel "stable"
2017/08/23 19:43:48.612784 errtracker.go:174: errtracker.Report is *not* sent because SNAPPY_TESTING is set
2017/08/23 19:43:48.612853 errtracker.go:175: report: map[DistroRelease:Ubuntu 16.04 CoreSnapdBuildID:c658e1cf22472bb9b30ab91b92885a8206093087 KernelVersion:4.10.0-32-generic DidSnapdReExec:no MD5SumSnapConfineAppArmorProfile:994d8eb49eaa72b3458ec31ba066e797 ProblemType:Snap SnapdVersion:2.26.3+git324.g27a9d88.dirty Date:Wed Aug 23 19:43:48 2017 Snap:xkcd-webserver HostSnapdBuildID:unknown DuplicateSignature:snap-install:
download-snap: Undoing
snap-setup: "xkcd-webserver"
validate-snap: Done
mount-snap: Undo
copy-snap-data: Undoing
setup-profiles: Error
ERROR cannot setup mount for snap "xkcd-webserver": cannot update mount namespace of snap "xkcd-webserver": cannot update preserved namespace of snap "xkcd-webserver": cannot update snap namespace: cannot switch mount namespace: invalid argument
ERROR cannot update mount namespace of snap "xkcd-webserver": cannot update preserved namespace of snap "xkcd-webserver": cannot update snap namespace: cannot switch mount namespace: invalid argument
link-snap: Hold
set-auto-aliases: Hold
setup-aliases: Hold
run-hook: Hold
start-snap-services: Hold
run-hook: Hold Revision:16 Architecture:amd64 ErrorMessage:change "install-snap": "Install \"xkcd-webserver\" snap"
download-snap: Undoing
snap-setup: "xkcd-webserver" (16) "stable"
validate-snap: Done
mount-snap: Undo
copy-snap-data: Undoing
setup-profiles: Error
ERROR cannot setup mount for snap "xkcd-webserver": cannot update mount namespace of snap "xkcd-webserver": cannot update preserved namespace of snap "xkcd-webserver": cannot update snap namespace: cannot switch mount namespace: invalid argument
ERROR cannot update mount namespace of snap "xkcd-webserver": cannot update preserved namespace of snap "xkcd-webserver": cannot update snap namespace: cannot switch mount namespace: invalid argument
link-snap: Hold
set-auto-aliases: Hold
setup-aliases: Hold
run-hook: Hold
start-snap-services: Hold
run-hook: Hold Channel:stable MD5SumSnapConfineAppArmorProfileReal:08363c6206f2a082c967b7ff50b0ceee]
2017/08/23 19:43:48.634340 taskrunner.go:367: DEBUG: Running task 846 on Undo: Mount snap "xkcd-webserver" (16)