Enabled stack-use-after-return (Linux/Darwin) and leak-detection (Linux).  Smoke logs available at http://m-l.org/~perl/smoke/perl/darwin-thread-multi-2level/blead_clang_quick_sanitize=address/log486e2a3e2d1cf8ba767c57db59f0c0f56f235971.log.gz

Automated smoke report for branch blead 5.41.6 patch 486e2a3e2d1cf8ba767c57db59f0c0f56f235971 v5.41.5-82-g486e2a3e2d
iTunes-MacBook-Air-Ethernet.local: MacBook Air (2 GHz) (Intel Core i7/1 cpu[2 cores])
    on        darwin - 18.7.0)
    using     cc version 4.2.1 Compatible Apple LLVM 11.0.0 (clang-1100.0.33.17)
    smoketime 15 hours 43 minutes (average 52 minutes 25 seconds)

Summary: PASS

O = OK  F = Failure(s), extended report at the bottom
X = Failure(s) under TEST but not under harness
? = still running or test results not (yet) available
Build failures during:       - = unknown or N/A
c = Configure, m = make, M = make (after miniperl), t = make test-prep

v5.41.5-82-g486e2a3e2d  Configuration (common) none
----------- ---------------------------------------------------------
O O         -Uuseperlio
O O         
O O         -Duse64bitint
O O         -Duselongdouble
O O         -Dusemorebits
O O         -Duseithreads
O O         -Duseithreads -Duse64bitint
O O         -Duseithreads -Duselongdouble
O O         -Duseithreads -Dusemorebits
| +--------- -DDEBUGGING
+----------- no debugging


Testsuite was run only with 'harness'

MANIFEST did not declare '.mailmap'
(See log because mailing list size limit is too small.)
Non-Fatal messages(gcc):

-- 
Report by Test::Smoke v1.72 running on perl 5.18.4
(Reporter v0.053 / Smoker v0.046)