<verbatim>
[0] http-transport:client-connect -> 8080 #<request> #<request>)
pid:1559 INFO: (1) Running -runstep, first change to directory

Error: (string-split) bad argument type - not a string: #f

        Call history:

        margs.scm:17: hash-table-ref/default
        megatest.scm:931: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:934: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:937: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:940: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:946: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:947: args:get-arg
        margs.scm:17: hash-table-ref/default
        megatest.scm:948: conc
        megatest.scm:952: get-environment-variable
        megatest.scm:952: string-split          <--
; tracing tasks:server-lock-slot
</verbatim>