Please try it out. Working towards a release of ASDF soon, so anything you could do to help iron out bugs would be very much appreciated!
i did a thoughtless git checkout and rebuild, and i got the attached backtrace.
the issue is with the new ban on operation instances. note that it seems to happen during an upgrade of ASDF itself, which may or may not be relevant.
maybe for a while it should only be a full warning?
my script is basically a build script for an executable SBCL image that loads all dependencies of our projects except our projects themselves. the dependencies come from the a mixture of the latest of quicklisp and my workspace.
hope this helps,