investigate flaky test-http-set-trailers in CI

[gireeshpunathil]

• Version:
• Platform:
• Subsystem:

13:55:09 not ok 1000 parallel/test-http-set-trailers
13:55:09   ---
13:55:09   duration_ms: 0.191
13:55:09   severity: fail
13:55:09   exitcode: 1
13:55:09   stack: |-
13:55:09     events.js:187
13:55:09           throw er; // Unhandled 'error' event
13:55:09           ^
13:55:09     
13:55:09     Error: connect ECONNRESET 127.0.0.1:39565
13:55:09         at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1129:14)
13:55:09     Emitted 'error' event on Socket instance at:
13:55:09         at emitErrorNT (internal/streams/destroy.js:84:8)
13:55:09         at processTicksAndRejections (internal/process/task_queues.js:80:21) {
13:55:09       errno: -104,
13:55:09       code: 'ECONNRESET',
13:55:09       syscall: 'connect',
13:55:09       address: '127.0.0.1',
13:55:09       port: 39565
13:55:09     }
13:55:09   ...

ref: https://ci.nodejs.org/job/node-test-commit-linux-containered/nodes=ubuntu1804_sharedlibs_withoutintl_x64/15907/console

[gireeshpunathil]

cc @nodejs/http @nodejs/testing

[Trott]

https://ci.nodejs.org/job/node-test-commit-linux-containered/15954/nodes=ubuntu1804_sharedlibs_withoutssl_x64/console

00:02:25 not ok 1107 parallel/test-http-set-trailers
00:02:25   ---
00:02:25   duration_ms: 0.193
00:02:25   severity: fail
00:02:25   exitcode: 1
00:02:25   stack: |-
00:02:25     events.js:187
00:02:25           throw er; // Unhandled 'error' event
00:02:25           ^
00:02:25     
00:02:25     Error: connect ECONNRESET 127.0.0.1:44625
00:02:25         at TCPConnectWrap.afterConnect [as oncomplete] (net.js:1129:14)
00:02:25     Emitted 'error' event on Socket instance at:
00:02:25         at emitErrorNT (internal/streams/destroy.js:84:8)
00:02:25         at processTicksAndRejections (internal/process/task_queues.js:80:21) {
00:02:25       errno: -104,
00:02:25       code: 'ECONNRESET',
00:02:25       syscall: 'connect',
00:02:25       address: '127.0.0.1',
00:02:25       port: 44625
00:02:25     }
00:02:25   ...

[gireeshpunathil]

looks like this has disappeared as it was not reported for months by now. Closing, can re-open if that is not the case