poudriere-bulk(8) failed ports: leftovers

Build succeeds for poudriere-devel, e.g.

poudriere bulk -j main -J 2 -Ct ports-mgmt/poudriere-devel

*Builds fail* for ports such as virtualbox-ose-kmod, 
sysctlbyname-improved-kmod, and nvidia-driver-470.

Any ideas?

poudriere-devel-3.4.99.20240424

FreeBSD mowa219-gjp4-zbook-freebsd 15.0-CURRENT FreeBSD 15.0-CURRENT 
main-n270687-23f4131ad685 GENERIC amd64 1500019 1500019

root@mowa219-gjp4-zbook-freebsd:~ # poudriere bulk -j main -J 3 -Ct 
x11/nvidia-driver-470
[00:00:00] Creating the reference jail... done
[00:00:00] Mounting system devices for main-default
[00:00:00] Stashing existing package repository
[00:00:00] Mounting ccache from: /internalssd/var/cache/ccache
[00:00:00] Mounting ports from: /usr/local/poudriere/ports/default
[00:00:00] Mounting packages from: 
/usr/local/poudriere/data/packages/main-default
[00:00:00] Mounting distfiles from: /usr/ports/distfiles
[00:00:00] Copying /var/db/ports from: 
/usr/local/etc/poudriere.d/main-options
[00:00:00] Appending to make.conf: /usr/local/etc/poudriere.d/make.conf
/etc/resolv.conf -> 
/usr/local/poudriere/data/.m/main-default/ref/etc/resolv.conf
[00:00:00] Starting jail main-default
Updating /var/run/os-release done.
[00:00:01] Will build as nobody:nobody (65534:65534)
[00:00:02] Ports supports: FLAVORS SUBPACKAGES SELECTED_OPTIONS
[00:00:02] Inspecting 
/usr/local/poudriere/data/.m/main-default/ref//usr/ports for 
modifications to git checkout... no
[00:00:10] Ports top-level git hash: 411ad89a834
[00:00:10] Acquiring build logs lock for main-default... done
[00:00:10] Logs: 
/usr/local/poudriere/data/logs/bulk/main-default/2024-06-10_03h07m50s
[00:00:10] Loading MOVED for 
/usr/local/poudriere/data/.m/main-default/ref/usr/ports
[00:00:11] Gathering ports metadata
[00:00:16] Calculating ports order and dependencies
[00:00:18] Sanity checking the repository
[00:00:18] -C specified, cleaning listed packages
[00:00:18] (-C) Flushing package deletions
[00:00:18] Trimming IGNORED and blacklisted ports
[00:00:18] Package fetch: Looking for missing packages to fetch from 
pkg+https://pkg.freebsd.org/${ABI}/latest
Updating FreeBSD repository catalogue...
[main-default] Fetching meta.conf: 100%    178 B   0.2kB/s    00:01
[main-default] Fetching data.pkg: 100%    7 MiB   7.4MB/s    00:01
Processing entries: 100%
FreeBSD repository update completed. 34082 packages processed.
Updating pkgbase repository catalogue...
[main-default] Fetching meta.conf: 100%    178 B   0.2kB/s    00:01
[main-default] Fetching data.pkg: 100%   41 KiB  42.1kB/s    00:01
Processing entries: 100%
pkgbase repository update completed. 538 packages processed.
All repositories are up to date.
[00:02:43] Package fetch: No packages eligible to fetch
[00:02:43] Checking packages for incremental rebuild needs
[00:02:47] Deleting stale symlinks... done
[00:02:47] Deleting empty directories... done
[00:02:47] Unqueueing existing packages
[00:02:48] Unqueueing orphaned build dependencies
[00:02:48] Sanity checking build queue
[main-default] [2024-06-10_03h07m50s] [pkgqueue_sanity_check] Queued: 1 
Built: 0 Failed: 0 Skipped: 0 Ignored: 0 Fetched: 0 Tobuild: 1   Time: 
00:02:37
[00:02:48] Recording filesystem state for prepkg... done
[00:02:49] Processing PRIORITY_BOOST
[00:02:49] Building 1 packages using up to 1 builders
[00:02:49] Hit CTRL+t at any time to see build progress and stats
[00:02:56] [01] [00:00:00] Builder starting
[00:02:56] [01] [00:00:00] Builder started
[00:02:56] [01] [00:00:00] Building x11/nvidia-driver-470 | 
nvidia-driver-470-470.161.03_1
[00:06:10] [01] [00:03:14] Finished x11/nvidia-driver-470 | 
nvidia-driver-470-470.161.03_1: Failed: leftovers
[00:06:11] Stopping 1 builders
main-default-job-01: removed
main-default-job-01-n: removed
[00:06:13] Creating pkg repository
Creating repository in /tmp/packages: 100%
Packing files for repository: 100%
[00:06:54] Committing packages to repository: 
/usr/local/poudriere/data/packages/main-default/.real_1717985685 via 
.latest symlink
[00:06:54] Removing old packages
[00:06:54] Failed ports: x11/nvidia-driver-470:leftovers
[main-default] [2024-06-10_03h07m50s] [committing] Queued: 1 Built: 0 
Failed: 1 Skipped: 0 Ignored: 0 Fetched: 0 Tobuild: 0   Time: 00:06:44
[00:06:54] Logs: 
/usr/local/poudriere/data/logs/bulk/main-default/2024-06-10_03h07m50s
[00:06:54] Cleaning up
main-default: removed
main-default-n: removed
[00:06:54] Unmounting file systems
root@mowa219-gjp4-zbook-freebsd:~ #