Hi, Reily Siegel schreef op do 03-02-2022 om 19:25 [-0500]: > +       ;; These tests cause the build system to hang. > +       #:test-exclude '(clojure.core.async-test > +                        clojure.core.async.lab-test))) That seems like a bug --- in the main source code, in the test suite, or in Clojure itself. In the first and last case, this indicates a real problem to be fixed (presumably upstream) and not simply ignored --- what is the point of a test suite when we just ignore failing (or hanging) tests? In the second case, upstream needs to be informed such that they can fix their tests. Has upstream been informed? Greetings, Maxime.