Hello
I made a merge request (https://github.com/slime/slime/pull/776) after commit dd179f4a changed the behaviour of loading the swank asdf system when swank has been loaded by swank-loader already. With dd179f4a, loading the asdf system proceeds and produces lots of redefinition warnings and also package variance warnings on SBCL. The latter made asdf:load-system fail when run under Slime.
I believe this fix is necessary to compile stuff that depends on swank via ASDF. Please consider merging it.
Cheers, Gábor