kernel 100% CPU, and ports-mgmt/poudriere-devel 'Inspecting ports tree for modifications to git checkout...' for an extraordinarily long time

From: Graham Perrin <grahamperrin_at_gmail.com>
Date: Sat, 02 Sep 2023 08:53:38 UTC
Some inspections are extraordinarily time-consuming. Others complete 
very quickly, as they should.

One recent inspection took more than half an hour.

Anyone else?

A screenshot: <https://i.imgur.com/SK9qvfw.png>

% pkg iinfo poudriere-devel
poudriere-devel-3.3.99.20220831
% uname -aKU
FreeBSD mowa219-gjp4-8570p-freebsd 15.0-CURRENT FreeBSD 15.0-CURRENT 
amd64 1500000 #10 main-n265053-315ee00fa961-dirty: Mon Aug 28 06:22:31 
BST 2023 
grahamperrin@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG 
amd64 1500000 1500000
%