let () = begin Stdio.eprintf "Starting Server\n"; let forever, _ = Lwt.wait() in Lwt_main.run forever; end;;
I am building this with “dune build -w” and running it with “_build/default/bin/run.exe”
I get no output.
However, if I delete the
let forever, _ = Lwt.wait() in Lwt_main.run forever;
lines, then I do get the eprintf output.
Question: what is going on? I’m using Stdio.eprintf “…\n”, so I’m expecting this to hit stderr. It is not clear to me why the output is being buffered / hidden.