Looks like several other tests in S17-procasync/basic.t would be failing as well if it weren't for the explicit kludges[^1][^2] added to replace "\r\n" to "\n". And `grep -nFR '\r\n' | grep subs` shows[^3] 32 potential places with a similar workaround.
Pretty LTA for portable Perl 6 code to require any such thing. [1] https://github.com/perl6/roast/blob/045e538f0f28dedb7261b7c013eec16a5cf2ee7e/S17-procasync/basic.t#L19-L20 [2] https://github.com/perl6/roast/blob/045e538f0f28dedb7261b7c013eec16a5cf2ee7e/S17-procasync/basic.t#L62-L63 [3] https://gist.github.com/zoffixznet/c343ed73b830d57e022eb99478764c78
