How to debug cro installation with zef

I'd like to try some things with raku and cro but can't install it with:

zef install cro

I'm getting an error when it tries to install the module YAMLish. Running the installation with --debug gives:

[YAMLish] Extracting with plugin Zef::Service::Shell::tar aborted.
something went wrong extracting C:\Users\zb\AppData\Local\Temp/.zef/1698391208.16200\1698391222.16200.367.3485459071357\YAMLish%3Aver%3C0.0.6%3E%3Aauth%3Cgithub%3ALeont%3E.tar.gz
to C:\Users\zb\AppData\Local\Temp/.zef/1698391208.16200\YAMLish%3Aver%3C0.0.6%3E%3Aauth%3Cgithub%3ALeont%3E.tar.gz
with Zef::Service::Shell::git<3508240998224>,Zef::Service::FetchPath<3508225362272>,Zef::Service::Shell::tar<3508225362240>,Zef::Service::Shell::unzip<3508225361216>

The archive in question is present and was partly extracted to the target directory. If I were to guess, it seems to have choked on yamlish-master/test-suite/meta which contains a lot of symbolic links that point to non-existant files?

How can I resolve this or debug further? I'm running Rakudo v2023.10 on Windows 10.0.19045.3570.

Solution

Update: The issue was fixed a few hours later by YAMLish's maintainer 🙂

With help from ugexe it became clear this is indeed caused by failure to create the symbolic links in question and that a workaround is to install directly from the YAMLish github repo:

zef install https://github.com/Leont/yamlish.git

Digging a bit deeper, I've found that creating symlinks in Windows (e.g. mklink) is only allowed

with administrative privileges or
in "Developer Mode" (added 2016 in Windows 10 build 14972)

Going either route allows installing the YAMLish module with just:

zef install YAMLish