clinic doctor issues running worker thread test

[jasnell]

Attempting to run the following in Node.js 13.11.0

const {
  Worker,
  isMainThread,
} = require('worker_threads');

if (isMainThread) {

  for (let n = 0; n < 100; n++) {
    new Worker(__filename);
  }

} else {

  const m = [...new Array(1000)];
  JSON.stringify(m);

}

Any number of threads causes the same failure. See gist: https://gist.github.com/jasnell/a8e584452e5ac4da6a1f8b6f90e8bf28

Using clinic v5.0.0 (clinic doctor -- node t.js)

Error:

To generate the report press: Ctrl + C
[    ] Analysing dataundefined:20
      if (!found0 || !found1 || !found2 || !found3 || !found4) throw new Error("Decoded message is not valid")
                                                               ^

Error: Decoded message is not valid
    at Object.decode (eval at line.toFunction (/home/james/.nvm/versions/node/v13.11.0/lib/node_modules/clinic/node_modules/generate-function/index.js:172:21), <anonymous>:20:70)
    at ProcessStatDecoder._transform (/home/james/.nvm/versions/node/v13.11.0/lib/node_modules/clinic/node_modules/@nearform/doctor/format/abstract-decoder.js:42:31)
    at ProcessStatDecoder.Transform._read (_stream_transform.js:191:10)
    at ProcessStatDecoder.Transform._write (_stream_transform.js:179:12)
    at doWrite (_stream_writable.js:392:12)
    at writeOrBuffer (_stream_writable.js:374:5)
    at ProcessStatDecoder.Writable.write (_stream_writable.js:314:12)
    at ReadStream.ondata (_stream_readable.js:708:22)
    at ReadStream.emit (events.js:315:20)
    at addChunk (_stream_readable.js:297:12)