/home/aol30/bin/nsd8x -ft nsd.tcl
test-1.tcl includes test-1.adp, which throws an error.
The server encountered a configuration or operating system error while attempting to satisfy your request.
This output is buggy. If you look at test-2.adp, you'll see that the only message it outputs is
(test-1.adp 1) (test-1.adp 2) (test-2.adp)
(test-2.adp). Some output from test-1.adp got left in the ADP output buffer when test-1.adp threw an error, and Ns_AdpRequest sent it along with the test-2.adp output.