commit https://github.com/vim/vim/commit/ebf7dfa6f121c82f97d2adca3d45fbaba9ad8f7e Author: Bram Moolenaar <Bram@vim.org> Date: Thu Apr 14 12:46:51 2016 +0200 patch 7.4.1727 Problem: Cannot detect a crash in tests when caused by garbagecollect(). Solution: Add garbagecollect_for_testing(). Do not free a job if is still useful.

--- a/src/main.c
+++ b/src/main.c
@@ -1531,7 +1531,7 @@ getout(int exitval)
 #endif
 #ifdef FEAT_EVAL
     if (garbage_collect_at_exit)
-	garbage_collect();
+	garbage_collect(FALSE);
 #endif
 #if defined(WIN32) && defined(FEAT_MBYTE)
     free_cmd_argsW();