`wsldl backup` fails with `4294967295` exit code

[Marat Radchenko]

Way to reproduce:

1. Windows Server 2019
2. PowerShell

Invoke-WebRequest -Uri https://dl-cdn.alpinelinux.org/alpine/v3.15/releases/x86_64/alpine-minirootfs-3.15.0-x86_64.tar.gz -OutFile alpine.tar.gz
Invoke-WebRequest -Uri https://github.com/yuk7/wsldl/releases/download/21082800/wsldl.exe -OutFile wsldl.exe
./wsldl.exe install alpine.tar.gz
./wsldl.exe backup --tgz

Here's GitHub Actions test run that reproduces this error: https://github.com/slonopotamus/wsldl-backup/runs/4752601188?check_suite_focus=true

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Note that I do NOT reproduce this on Windows 10 20H2 neither in WSL1 nor in WSL2 modes.

[yuk7]

Thank you for your reporting.
I'll work on fixing this.

[Marat Radchenko]

Additional info: this does NOT reproduce on Windows Server 2022: https://github.com/slonopotamus/wsldl-backup/runs/4752656765?check_suite_focus=true

[Marat Radchenko]

The problem is that wsl.exe doesn't support --export on Windows Server 2019.