Scanning binaries segfault

[Fielding, Eric J (US 329A) via macports-users]

I was running a `port upgrade outdated` (actually I had to add `and not 
py37-scipy` as that was not building), and when it finished upgrading ports, it 
started the usual “Scanning binaries for linking errors”. This step is crashing 
with a “Segmentation fault” after about 30%. Does this mean my ports database 
is corrupted or something like that? Is there a way to recover without 
reinstalling all the ports?  I am running “MacPorts base version 2.6.4” on 
Catalina.
Thanks,
                ++Eric