The matrix shows a majority of failures on MSWin32 (and no passes at all on cygwin). There is also a bug report which includes a comment by Wes Malone with what appears to be the same problem as you have.

🦛

In reply to Re: Unable to install module IO::Async::Loop on windows 10 strawberry Perl by hippo
in thread Unable to install module IO::Async::Loop on windows 10 strawberry Perl by programmingzeal

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