Can't catch output from external programs or library bindings.

[dagurval]

The module is unable to catch output from programs executed, or output from language bindings (things that use module NativeCall).

Example:

  perl6 -e "use IO::Capture::Simple; my \$out = capture { shell \"echo cant catch me\"; };"

[tadzik]

This can be done with Proc::Async, panda currently has this functionality: https://github.com/tadzik/panda/blob/6073de4c0bc349d467347e7d2647a6cdb33b74c7/lib/Panda/Common.pm#L65

Only the $has-proc-async branch is worth copying, now that Proc::Async is... 2 years old or so :)