Platform-specific (MacOS 'El Capitan') failure in S32-list/pick.t

[SqrtNegInf]

The Problem

On one platform (MacOS 'El Capitan') a test in S32-list/pick.t fails. Linux/Ubuntu works fine.

Actual Behavior

Error randomizing a big integer: Invalid error code
at SETTING::src/core.c/Range.pm6:488 (/Users/dhoekman/.rakudobrew/versions/moar-blead/install/share/perl6/runtime/CORE.c.setting.moarvm:roll)

Steps to Reproduce

my $v = 2; for (1..31) { is ([+|] ((^$v).pick for ^162)), $v - 1 ; $v +<= 1 }

Note that the original test is as below, but the limits used above show the exact iteration at which the failure occurs.

my $v = 2; for (1..259) { is ([+|] ((^$v).pick for ^200)), $v - 1 ; $v +<= 1 }

Environment

I'm seeing this only on an older MacOS ('El Capitan'):
Darwin Mac-Pro.local 15.6.0 Darwin Kernel Version 15.6.0: Thu Jun 21 20:07:40 PDT 2018; root:xnu-3248.73.11~1/RELEASE_X86_64 x86_64

First noticed on:
Rakudo version 2020.01-76-ge1faa704e built on MoarVM version 2020.01.1-25-g9709537d9

It may be there's no easy fix (this is an older OS, with increasingly out-of-date libraries) but I report in case it illuminates other issues related .pick or libtommath. Direct tests on with libtommath package showed no errors.

See Also

The test that's failing was added in response to an older issue:

Raku/old-issue-tracker#2633

[Altai-man]

Is it a regression after 2020.01 or?

[SqrtNegInf]

As with #3469 it appeared around the time of the commit f8b9d02

It was definitely not present the previous day with the build:

Rakudo version 2020.01-70-gc1b8ff60f built on MoarVM version 2020.01.1-2-gcbb04d462

[SqrtNegInf]

I can confirm that the problem is fixed on older MacOS (10.11, 10.13).