Subprocess calls hang on Ubuntu 22.04 with Swift 6.1 in Release builds

[omochi]

Describe the bug
Subprocess calls hang on Ubuntu 22.04 with Swift 6.1 in Release builds.

To Reproduce
It only takes calling the following.

try await Subprocess.run(
            .name("tar"),
            arguments: ["-cvf", "archive.tar", "Sources/"],
            output: .standardOutput,
            error: .standardError
        )

This can be easily reproduced with the following repository.
https://github.com/omochi/swift-subprocess-rpath-bug

Expected behavior
the call completes.

Environment (please complete the following information):

• ubuntu 22.04
• swift 6.1

Additional context
The issue only occurs with the combination of Swift 6.1 and Release builds.
It does not happen with Swift 6.2 or with Debug builds. You can verify this by editing the Dockerfile.

[omochi]

This might be related:
#182

It doesn’t seem to be related to Linux, but rather may be caused by a release build with Swift 6.1.

[iCharlesHu]

I believe it's hang in release builds in general. I'll track this issue with #182