Test hangs forever on macOS Mojave 10.14.2

[MattOates]

$ uname -v
Darwin Kernel Version 18.2.0: Mon Nov 12 20:24:46 PST 2018; root:xnu-4903.231.4~2/RELEASE_X86_64
$ perl6 --version
This is Rakudo version 2018.12-281-g46409c070 built on MoarVM version 2018.12-45-ga9d02578a
implementing Perl 6.d.

==> Testing: cro:ver<0.8.0>
# Check service up attempt 1: connection refused
# Check service up attempt 2: connection refused
# Check service up attempt 3: connection refused
# Check service up attempt 4: connection refused
# Check service up attempt 5: connection refused
# Check service up attempt 6: connection refused
# Check service up attempt 7: connection refused
# Check service up attempt 8: connection refused
# Check service up attempt 9: connection refused
# Check service up attempt 10: connection refused
# Check service up attempt 11: connection refused
# Check service up attempt 12: connection refused
# Check service up attempt 13: connection refused
# Check service up attempt 14: connection refused
# Check service up attempt 15: connection refused
# Check service up attempt 16: connection refused
# Check service up attempt 17: connection refused
# Check service up attempt 18: connection refused
# Check service up attempt 19: connection refused
# Check service up attempt 20: connection refused
# Check service up attempt 21: connection refused
# Check service up attempt 22: connection refused
# Check service up attempt 23: connection refused
# Check service up attempt 24: connection refused
# Check service up attempt 25: connection refused
# Check service up attempt 26: connection refused
# Check service up attempt 27: connection refused
# Check service up attempt 28: connection refused
# Check service up attempt 29: connection refused
# Check service up attempt 30: connection refused
# Check service up attempt 31: connection refused
# Check service up attempt 32: connection refused
# Check service up attempt 33: connection refused
# Check service up attempt 34: connection refused
# Check service up attempt 35: connection refused
# Check service up attempt 36: connection refused
# Check service up attempt 37: connection refused
# Check service up attempt 38: connection refused
# Check service up attempt 39: connection refused
# Check service up attempt 40: connection refused
# Failed test 'Could call the started service'
# at t/tools-runner.t line 63
# Failed test 'Got expected resposne from service'
# at t/tools-runner.t line 64
# expected: 'Service 1 OK'
#      got: (Any)

^ just hangs at this point

[coke]

Had a blocker for some time on prereqs - now getting the same "connection refused" trying to test cro on 10.15.7

[coke]

Sorry, when running this by hand (instead of via zef) it actually seems to be hanging now on the dies-ok in t/tools-runner.t on line 89 (I pass the failing test above; I do see 4 "connection refused", but the test above does pass.

[Altai-man]

Would be nice to take care of this before next release.