Description

This is discovered in the plugin repro: https://cirrus-ci.com/task/6082379875876864 and it is currently blocking the flutter/plugins tree

I have created a reduced test case to reproduce issue locally, which can be found here: https://github.com/cyanglaz/second_process_return_one

This package has a main.dart which executes 2 commands using io.Process.start: flutter --version and ls -l sequentially.

steps to reproduce:

1. Download the package in above repo, activate the package using pub global activate -s path path_to/second_process_return_one
2. Make sure to outdate the current flutter installation. One simple way is to switch flutter branch between master and stable.
3. Execute pub global run second_process_return_one at any directory.
4. You will see the log:

Downloading Dart SDK from Flutter engine 5d3477eab415fbcc3d58624b07f0a768f8208f98...
Building flutter tool...
Running command: "ls -l"
1
ls -l second time failed

Note

This doesn't fail if ran directly with dart like:
dart path_to/second_process_return_one/lib/main.dart
This seems only happening on MacOS.