Build failures with Mountain Lion

Working on bringing online a new build farm machine running Mountain Lion.

Warnings are being generated in the contrib installcheck phase, causing the failure of the build transaction.

[5012f1c9.4014:27] LOG:  statement: select pgp_key_id(dearmor(seckey)) from keytbl where id=6;
[5012f1c9.4014:28] WARNING:  detected write past chunk end in ExprContext 0x7fc82c136758

I've included the web transaction data from the build.

Shall I continue with registering this machine, or wait?

Thanks,
Rob