bwauth files don't include opinions about Authorities
It appears that moria1's bwauth doesn't provide an opinion about moria1, or any authority for that matter.
And no authorities provide Measured lines for turtles.
I suspect there's code in the bwauth to skip measuring authorities.
That's going to be bad now that we've turned on legacy/trac#8435 (moved).
The right fix might be to change the bwauths. But for now I'm filing as a Tor bug until we figure out where to fix it.