/usr/share/perl5/IO/Async/ is in libio-async-perl 0.70-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/IO/Async/Channel.pm
/usr/share/perl5/IO/Async/ChildManager.pm
/usr/share/perl5/IO/Async/Debug.pm
/usr/share/perl5/IO/Async/File.pm
/usr/share/perl5/IO/Async/FileStream.pm
/usr/share/perl5/IO/Async/Function.pm
/usr/share/perl5/IO/Async/Future.pm
/usr/share/perl5/IO/Async/Handle.pm
/usr/share/perl5/IO/Async/Internals/
/usr/share/perl5/IO/Async/Internals/Connector.pm
/usr/share/perl5/IO/Async/Internals/TimeQueue.pm
/usr/share/perl5/IO/Async/Listener.pm
/usr/share/perl5/IO/Async/Loop/
/usr/share/perl5/IO/Async/Loop.pm
/usr/share/perl5/IO/Async/Loop/Poll.pm
/usr/share/perl5/IO/Async/Loop/Select.pm
/usr/share/perl5/IO/Async/LoopTests.pm
/usr/share/perl5/IO/Async/Notifier.pm
/usr/share/perl5/IO/Async/OS/
/usr/share/perl5/IO/Async/OS.pm
/usr/share/perl5/IO/Async/OS/MSWin32.pm
/usr/share/perl5/IO/Async/OS/cygwin.pm
/usr/share/perl5/IO/Async/OS/linux.pm
/usr/share/perl5/IO/Async/PID.pm
/usr/share/perl5/IO/Async/Process.pm
/usr/share/perl5/IO/Async/Protocol/
/usr/share/perl5/IO/Async/Protocol.pm
/usr/share/perl5/IO/Async/Protocol/LineStream.pm
/usr/share/perl5/IO/Async/Protocol/Stream.pm
/usr/share/perl5/IO/Async/Resolver.pm
/usr/share/perl5/IO/Async/Routine.pm
/usr/share/perl5/IO/Async/Signal.pm
/usr/share/perl5/IO/Async/Socket.pm
/usr/share/perl5/IO/Async/Stream.pm
/usr/share/perl5/IO/Async/Test.pm
/usr/share/perl5/IO/Async/Timer/
/usr/share/perl5/IO/Async/Timer.pm
/usr/share/perl5/IO/Async/Timer/Absolute.pm
/usr/share/perl5/IO/Async/Timer/Countdown.pm
/usr/share/perl5/IO/Async/Timer/Periodic.pm