3.2.0.beta4 failed to build -- Site down

Alas, no joy:

I, [2024-01-11T11:06:29.588530 #1] INFO – : > cd /var/www/discourse && su discourse -c ‘bundle install --retry 3 --jobs 4’
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rbtrace-0.5.1/ext
/usr/local/bin/ruby extconf.rb
– tar zxvfo msgpack-1.1.0.tar.gz
– env CFLAGS=nil LDFLAGS=nil CC=nil
– ./configure --disable-dependency-tracking --disable-shared --with-pic
–prefix=/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rbtrace-0.5.1/ext/dst/
–libdir=/var/www/discourse/vendor/bundle/ruby/3.2.0/gems/rbtrace-0.5.1/ext/dst/lib
*** extconf.rb failed ***