FreeBSD: pkg upgrade continued long after ^C

root@mowa219-gjp4-8570p-freebsd:~ # bectl create n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # bectl mount n255078-e140d551b78-b /tmp/up
Successfully mounted n255078-e140d551b78-b at /tmp/up
root@mowa219-gjp4-8570p-freebsd:~ # du -hs /var/cache/pkg
1.5M    /var/cache/pkg
root@mowa219-gjp4-8570p-freebsd:~ # time pkg -c /tmp/up upgrade --fetch-only --repository FreeBSD --quiet --yes
Conflicts with the existing packages have been found.
One more solver iteration is needed to resolve them.
11.886u 9.175s 1:55.58 18.2%    2455+515k 1838+45862io 2966pf+0w
root@mowa219-gjp4-8570p-freebsd:~ # time pkg -c /tmp/up upgrade --repository FreeBSD --quiet --yes
===> Creating groups.
Using existing group '_tor'.
===> Creating users
Using existing user '_tor'.
===> Creating homedir(s)
===> Creating groups.
Using existing group 'saned'.
===> Creating users
Using existing user 'saned'.
^C0.018u 0.000s 4:31.06 0.0%    1980+308k 0+0io 0pf+0w
root@mowa219-gjp4-8570p-freebsd:~ # bectl umount n255078-e140d551b78-b
cannot unmount '/tmp/up': pool or dataset is busy
specified path is busy
Failed to unmount bootenv n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # bectl umount n255078-e140d551b78-b
cannot unmount '/tmp/up': pool or dataset is busy
specified path is busy
Failed to unmount bootenv n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # time pkg -c /tmp/up upgrade --fetch-only --repository FreeBSD --quiet --yes
root@mowa219-gjp4-8570p-freebsd:~ # cd
root@mowa219-gjp4-8570p-freebsd:~ # bectl umount n255078-e140d551b78-b
cannot unmount '/tmp/up': pool or dataset is busy
specified path is busy
Failed to unmount bootenv n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # Building the Shared MIME-Info database cache

root@mowa219-gjp4-8570p-freebsd:~ #
root@mowa219-gjp4-8570p-freebsd:~ #
root@mowa219-gjp4-8570p-freebsd:~ # bectl umount n255078-e140d551b78-b
cannot unmount '/tmp/up': pool or dataset is busy
specified path is busy
Failed to unmount bootenv n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # Building cache database of MIME types
Generating GTK icon cache for /usr/local/share/icons/Enlightenment-X
Generating GTK icon cache for /usr/local/share/icons/hicolor
Compiling glib schemas
You may need to manually remove /usr/local/etc/pkg.conf if it is no longer needed.
=====
Message from qpdfview-0.4.18_28:

--
===>   NOTICE:

The qpdfview port currently does not have a maintainer. As a result, it is
more likely to have unresolved issues, not be up-to-date, or even be removed in
the future. To volunteer to maintain this port, please create an issue at:

https://bugs.freebsd.org/bugzilla

More information about port maintainership is available at:

https://docs.freebsd.org/en/articles/contributing/#ports-contributing

root@mowa219-gjp4-8570p-freebsd:~ # bectl umount n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # bectl destroy n255078-e140d551b78-b
root@mowa219-gjp4-8570p-freebsd:~ # rm -r /tmp/up
root@mowa219-gjp4-8570p-freebsd:~ #