Collect failed "target"s from ninja in the compile step on Waterfall.

scripts/slave/recipes/findit/chromium/compile.expected/compile_failed.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
       "--master",
       "tryserver.chromium.linux",
       "--builder",
       "linux_variable",
@@ skipping 380 matching lines @@
       "--ninja-path",
       "RECIPE_PACKAGE_REPO[depot_tools]/ninja",
       "--target",
       "Release",
       "--src-dir",
       "[SLAVE_BUILD]/src",
       "--goma-cache-dir",
       "[GOMA_CACHE]",
       "--build-tool",
       "ninja",
+      "--ninja-compile-failure",
+      "/path/to/tmp/json",
       "--compiler",
       "goma",
       "--goma-jsonstatus",
       "/path/to/tmp/json",
       "--goma-dir",
       "[BUILD]/goma",
       "--ninja-ensure-up-to-date",
       "--",
       "chromium_swarm_tests"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "test r1.compile",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@",
       "step returned non-zero exit code: 1",
-      "@@@STEP_LOG_LINE@json.output (invalid)@null@@@",
-      "@@@STEP_LOG_END@json.output (invalid)@@@",
-      "@@@STEP_LOG_LINE@exception@TypeError(\"'NoneType' object has no attribute '__getitem__'\",)@@@",
-      "@@@STEP_LOG_END@exception@@@",
-      "@@@STEP_WARNINGS@@@"
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"notice\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@    {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"infra_status\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"ping_status_code\": 200@@@",
+      "@@@STEP_LOG_LINE@json.output@      }@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  ]@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_FAILURE@@@",
+      "@@@SET_BUILD_PROPERTY@compile_failures@{\"failed_targets\": [\"obj/path/to/file.o\"], \"unknown_targets\": [], \"unrecognized_format\": false}@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "import sys; sys.exit(0)"
     ],
     "cwd": "[SLAVE_BUILD]",
     "name": "report",
@@ skipping 17 matching lines @@
       "@@@STEP_LOG_END@report@@@",
       "@@@SET_BUILD_PROPERTY@report@{\"culprit\": \"r1\", \"metadata\": {\"regression_range_size\": 1, \"sub_ranges\": [[null, \"r1\"]]}, \"result\": {\"r1\": \"failed\"}}@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]