Investigating the cause of the flaky test "test_tracepoint_disable"

Author: ono-max

.github/workflows/compilers.yml

@@ -139,8 +139,9 @@ jobs:
 
       - name: make ${{ matrix.test_task }}
         run: |
-          ulimit -c unlimited
-          make -s ${{ matrix.test_task }} ${TESTS:+TESTS="$TESTS"}
+          for i in {1..1000}; do
+            make test-all
+          done
         timeout-minutes: 60
         env:
           RUBY_TESTOPTS: "-q --tty=no"