investigate flaky test-child-process-fork-exec-path in CI

[gireeshpunathil]

• Version: master
• Platform: windows
• Subsystem: child_process

11:54:22 not ok 126 parallel/test-child-process-fork-exec-path
11:54:22   ---
11:54:22   duration_ms: 0.494
11:54:22   severity: fail
11:54:22   exitcode: 1
11:54:22   stack: |-
11:54:22     Can't clean tmpdir: c:\workspace\node-test-binary-windows-2\test\.tmp.126
11:54:22     Files blocking: [ 'node-copy.exe' ]
11:54:22     
11:54:22     c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:136
11:54:22         throw e;
11:54:22         ^
11:54:22     
11:54:22     Error: ENOTEMPTY: directory not empty, rmdir 'c:\workspace\node-test-binary-windows-2\test\.tmp.126'
11:54:22         at Object.rmdirSync (fs.js:768:3)
11:54:22         at rmdirSync (c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:86:10)
11:54:22         at rimrafSync (c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:41:7)
11:54:22         at process.onexit (c:\workspace\node-test-binary-windows-2\test\common\tmpdir.js:121:5)
11:54:22         at process.emit (events.js:215:7) {
11:54:22       errno: -4051,
11:54:22       syscall: 'rmdir',
11:54:22       code: 'ENOTEMPTY',
11:54:22       path: 'c:\\workspace\\node-test-binary-windows-2\\test\\.tmp.126'
11:54:22     }
11:54:22   ...

ref: https://ci.nodejs.org/job/node-test-binary-windows-2/COMPILED_BY=vs2017,RUNNER=win2008r2-vs2017,RUN_SUBSET=1/4420/console

[gireeshpunathil]

again:

https://ci.nodejs.org/job/node-test-binary-windows-2/COMPILED_BY=vs2017,RUNNER=win2008r2-vs2017,RUN_SUBSET=1/4425/console

[joaocgreis]

This one is failing very frequently. Here is a recent example: https://ci.nodejs.org/job/node-test-binary-windows-js-suites/68/RUN_SUBSET=3,nodes=win2012r2-COMPILED_BY-vs2019-x86/testReport/junit/(root)/test/parallel_test_child_process_fork_exec_path/ running on https://ci.nodejs.org/computer/test-rackspace-win2012r2_vs2013-x64-2/