'chflags: fts_read: Permission denied' on fresh -CURRENT

Hi,

I've updated -CURRENT today to r364753, and poudriere started failing
with:

[00:00:00] Creating the reference jail...chflags: fts_read: Permission denied
[00:00:00] Cleaning up
[00:00:00] Unmounting file systems
chflags: fts_read: Permission denied

I've created a new jail and it fails with the same error.

I'm not using zfs and also I use the same sources for poudriere jails as
the host, i.e.:

current         13.0-CURRENT 1300112 amd64   src=/usr/src 2020-08-25 13:17:30 /usr/local/poudriere/jails/current
current13       13.0-CURRENT 1300113 amd64   src=/usr/src 2020-08-25 16:19:13 /usr/local/poudriere/jails/current13

Any ideas what could be wrong with this?

Roman Bogorodskiy