Poudriere in a jail error

[Cassiano Peixoto]

Hi,

I'm trying to run Poudriere inside a jail to build my packages but i'm
having the following error:

[00:00:00] ====>> Creating the reference jail... done
[00:00:03] ====>> Mounting system devices for 10amd64-system
[00:00:03] ====>> Mounting ports/packages/distfiles
[00:00:03] ====>> Using packages from previously failed build
[00:00:03] ====>> Mounting packages from:
/poudriere/data/packages/10amd64-system
[00:00:03] ====>> Mounting /var/db/ports from:
/usr/local/etc/poudriere.d/options
[00:00:03] ====>> Appending to make.conf:
/usr/local/etc/poudriere.d/make.conf
/etc/resolv.conf -> /poudriere/data/.m/10amd64-system/ref/etc/resolv.conf
[00:00:03] ====>> Starting jail 10amd64-system
jail: jail_set: Operation not permitted
[00:00:03] ====>> Cleaning up
[00:00:03] ====>> Umounting file systems

Any idea what's going on?

Thanks