Error: uncaught exception: #<condition: (exn type)>

        Call history:

        megatest.scm:1906: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:1956: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:1996: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:2008: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:2016: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:2028: debug:print
        common_records.scm:117: debug:debug-mode
        common_records.scm:118: with-output-to-port
        megatest.scm:2034: thread?
        megatest.scm:2035: thread-state
        megatest.scm:2037: thread-join!         <--