PHP segfaults when serving WP

[pguardiario]

• start server and request homepage results in segfault:

  User@owner-PC ~/wordpress: php -d xdebug.auto_trace=ON -d xdebug.trace_output_dir=mytracedir/ -S 127.0.0.1:9999
  PHP 7.3.3 Development Server started at Tue Apr 23 22:41:36 2019
  Listening on http://127.0.0.1:9999
  Document root is C:\cygwin\home\User\wordpress
  Press Ctrl-C to quit.
  [Tue Apr 23 22:41:43 2019] 127.0.0.1:64932 [200]: /
  Segmentation fault
  

• xdebug trace follows:

  User@owner-PC ~/wordpress: cat mytracedir/trace.1098458422.xt
  TRACE START [2019-04-24 02:41:45]
      3.0627   21699384   -> WP_Object_Cache->__destruct() C:\cygwin\home\User\wordpress\wp-includes\cache.php:0
      3.0630   20287800
  TRACE END   [2019-04-24 02:41:45]
  

• php version info follows:

  User@owner-PC ~/wordpress: php -v
  PHP 7.3.3 (cli) (built: Mar  6 2019 21:53:23) ( ZTS MSVC15 (Visual C++ 2017) x64 )
  Copyright (c) 1997-2018 The PHP Group
  Zend Engine v3.3.3, Copyright (c) 1998-2018 Zend Technologies
      with Xdebug v2.7.0, Copyright (c) 2002-2019, by Derick Rethans