Fly.io gossip glomers challenge 1 doesn't work with a binary file generated from a js file.

[aca123321]

I'm using the following command to attempt the challenge 1:
./maelstrom test -w echo --bin "../node_solutions/echo/maelstrom-echo" node-count 1 --time-limit 10

What I observe is the following error (I've attached the relevant logs (zipped) for your reference too.
20240730T215850.374+0530.zip)

clojure.lang.ExceptionInfo: Node n1 crashed with exit status 1. Before crashing, it wrote to STDOUT:



And to STDERR:

node:events:515
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::3001
    at Server.setupListenHandle [as _listen2] (node:net:1422:16)
    at listenInCluster (node:net:1470:12)
    at Server.listen (node:net:1558:7)
    at Function.listen (/snapshot/echo/node_modules/express/lib/application.js:635:24)
    at Object.<anonymous> (/snapshot/echo/out.js)
    at Module._compile (pkg/prelude/bootstrap.js:1926:22)
    at Module._extensions..js (node:internal/modules/cjs/loader:1166:10)
    at Module.load (node:internal/modules/cjs/loader:988:32)
    at Module._load (node:internal/modules/cjs/loader:834:12)
    at Function.runMain (pkg/prelude/bootstrap.js:1979:12)
Emitted 'error' event on Server instance at:
    at emitErrorNT (node:net:1449:8)
    at processTicksAndRejections (node:internal/process/task_queues:82:21)
    at process.runNextTicks [as _tickCallback] (node:internal/process/task_queues:64:3)
    at Function.runMain (pkg/prelude/bootstrap.js:1980:13)
    at node:internal/main/run_main_module:17:47 {
  code: 'EADDRINUSE',
  errno: -48,
  syscall: 'listen',
  address: '::',
  port: 3001
}

Node.js v18.5.0

Full STDERR logs are available in /Users/aca123321/Desktop/Personal/Fly io distriibuted systems challenges/maelstrom/store/echo/20240730T215850.374+0530/node-logs/n1.log
        at slingshot.support$stack_trace.invoke(support.clj:201)
        at maelstrom.process$stop_node_BANG_.invokeStatic(process.clj:239)
        at maelstrom.process$stop_node_BANG_.invoke(process.clj:217)
        at maelstrom.db$db$reify__16142.teardown_BANG_(db.clj:75)
        at jepsen.db$fn__8744$G__8725__8748.invoke(db.clj:12)
        at jepsen.db$fn__8744$G__8724__8753.invoke(db.clj:12)
        at clojure.core$partial$fn__5908.invoke(core.clj:2642)
        at jepsen.control$on_nodes$fn__8599.invoke(control.clj:314)
        at clojure.lang.AFn.applyToHelper(AFn.java:154)
        at clojure.lang.AFn.applyTo(AFn.java:144)
        at clojure.core$apply.invokeStatic(core.clj:667)
        at clojure.core$with_bindings_STAR_.invokeStatic(core.clj:1990)
        at clojure.core$with_bindings_STAR_.doInvoke(core.clj:1990)
        at clojure.lang.RestFn.applyTo(RestFn.java:142)
        at clojure.core$apply.invokeStatic(core.clj:671)
        at clojure.core$bound_fn_STAR_$fn__5818.doInvoke(core.clj:2020)
        at clojure.lang.RestFn.invoke(RestFn.java:408)
        at dom_top.core$real_pmap_helper$build_thread__211$fn__212.invoke(core.clj:163)
        at clojure.lang.AFn.applyToHelper(AFn.java:152)
        at clojure.lang.AFn.applyTo(AFn.java:144)
        at clojure.core$apply.invokeStatic(core.clj:667)
        at clojure.core$with_bindings_STAR_.invokeStatic(core.clj:1990)
        at clojure.core$with_bindings_STAR_.doInvoke(core.clj:1990)
        at clojure.lang.RestFn.invoke(RestFn.java:425)
        at clojure.lang.AFn.applyToHelper(AFn.java:156)
        at clojure.lang.RestFn.applyTo(RestFn.java:132)
        at clojure.core$apply.invokeStatic(core.clj:671)
        at clojure.core$bound_fn_STAR_$fn__5818.doInvoke(core.clj:2020)
        at clojure.lang.RestFn.invoke(RestFn.java:397)
        at clojure.lang.AFn.run(AFn.java:22)
        at java.base/java.lang.Thread.run(Thread.java:1583)```
        
               
        

[aca123321]

BTW, the binary file works perfectly fine on its own though and I've checked multiple times to make sure that no other process is assigned the port 3001 in both the cases.

[aca123321]

here's the node that'd handle the requests (running on port 3001)
echo.zip

[aca123321]

handlers are different. An express web server is not what's required here

[aphyr]

I'm not sure why you're getting this with --node-count 1, which should spawn only one copy of your process, but presumably something else has bound the port. Find that process and you'll have your answer. :-)

You, uh, don't need to bind any network ports at all, by the way. I assume you've got some other reason for doing this, but debugging it is sort of out of scope for Maelstrom.

[yaseen-un]

I found the node.js used in the demo post creating this issue. This is resolved now. Thanks for your time.