Recipe fix for buildbotless bots

infra/bots/recipes/swarm_test.expected/nobuildbot.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
       "[SLAVE_BUILD]/tmp",
       "511"
     ],
     "name": "makedirs tmp_dir",
@@ skipping 185 matching lines @@
     "name": "get swarming task id",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
       "@@@STEP_LOG_LINE@python.inline@import os@@@",
       "@@@STEP_LOG_LINE@python.inline@print os.environ.get('SWARMING_TASK_ID', '')@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "cmd": [
+      "catchsegv",
       "[SLAVE_BUILD]/out/Debug/dm",
       "--undefok",
       "--resourcePath",
       "[SLAVE_BUILD]/skia/resources",
       "--skps",
       "[SLAVE_BUILD]/skp",
       "--images",
       "[SLAVE_BUILD]/skimage/dm",
       "--colorImages",
       "[SLAVE_BUILD]/skimage/colorspace",
@@ skipping 269 matching lines @@
       "gamut",
       "2ndpic-8888",
       "gm",
       "_",
       "gamut",
       "serialize-8888",
       "gm",
       "_",
       "gamut"
     ],
-    "env": {
-      "BUILDTYPE": "Debug",
-      "CHROME_HEADLESS": "1",
-      "SKIA_OUT": "[SLAVE_BUILD]/out"
-    },
+    "cwd": "[SLAVE_BUILD]/skia",
     "name": "dm"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]