Avoid nesting steps called under waiting for x:

scripts/slave/recipe_modules/auto_bisect/example.expected/missing_metric_test.json

 [
   {
     "cmd": [
       "git",
       "update-ref",
       "refs/heads/master",
       "refs/remotes/origin/master"
     ],
     "cwd": "[TMP_BASE]/fake_checkout_tmp_1",
     "name": "git update-ref"
@@ skipping 200 matching lines @@
       "--svn_repo",
       "svn://svn.chromium.org/chrome-try/try-perf",
       "--diff",
       "/dev/null"
     ],
     "cwd": "[TMP_BASE]/fake_checkout_tmp_1",
     "name": "Requesting build for 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111 via git try."
   },
   {
     "cmd": [
-      "git",
-      "footers",
-      "--position",
-      "a6298e4afedbf2cd461755ea6f45b0ad64222222"
-    ],
-    "cwd": "[TMP_BASE]/fake_checkout_tmp_1",
-    "name": "resolving hash a6298e4afedbf2cd461755ea6f45b0ad64222222",
-    "stdout": "/path/to/tmp/"
-  },
-  {
-    "cmd": [],
-    "name": "Waiting for chromium@a6298e4afe"
-  },
-  {
-    "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "----",
       "ls",
       "gs://chrome-perf/Linux Builder/full-build-linux_a6298e4afedbf2cd461755ea6f45b0ad64222222.zip"
     ],
-    "name": "Waiting for chromium@a6298e4afe.gsutil ls",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
+    "name": "gsutil ls (3)"
   },
   {
     "cmd": [],
-    "name": "Waiting for chromium@a6298e4afe.Triggering test job for a6298e4afedbf2cd461755ea6f45b0ad64222222",
+    "name": "Triggering test job for a6298e4afedbf2cd461755ea6f45b0ad64222222",
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "src/tools/perf/run_benchmark -v --browser=release smoothness.tough_scrolling_cases",
             "metric": "mean_input_event_latency/mean_input_event_latency",
             "repeat_count": 5,
             "test_type": "perf"
           },
           "job_name": "a6298e4afedbf2cd461755ea6f45b0ad64222222-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_a6298e4afedbf2cd461755ea6f45b0ad64222222.zip",
           "parent_got_revision": "a6298e4afedbf2cd461755ea6f45b0ad64222222",
           "revision": "a6298e4afedbf2cd461755ea6f45b0ad64222222",
           "revision_ladder": {
             "chromium": "a6298e4afedbf2cd461755ea6f45b0ad64222222"
           }
         }
       }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys\nimport time\ntime.sleep(20*60)\nsys.exit(0)\n"
     ],
-    "name": "Waiting for chromium@a6298e4afe.sleeping",
+    "name": "sleeping",
     "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
       "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@time.sleep(20*60)@@@",
       "@@@STEP_LOG_LINE@python.inline@sys.exit(0)@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "----",
       "ls",
       "gs://chrome-perf/bisect-results/a6298e4afedbf2cd461755ea6f45b0ad64222222-test.results"
     ],
-    "name": "Waiting for chromium@a6298e4afe.gsutil ls (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
+    "name": "gsutil ls (4)"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "----",
       "cat",
       "gs://chrome-perf/bisect-results/a6298e4afedbf2cd461755ea6f45b0ad64222222-test.results"
     ],
-    "name": "Waiting for chromium@a6298e4afe.gsutil Get test results for build a6298e4afedbf2cd461755ea6f45b0ad64222222",
+    "name": "gsutil Get test results for build a6298e4afedbf2cd461755ea6f45b0ad64222222",
     "stdout": "/path/to/tmp/",
     "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
       "@@@SET_BUILD_PROPERTY@extra_result_code@[\"B4T_MISSING_METRIC\"]@@@"
     ]
   },
   {
     "cmd": [
-      "git",
-      "footers",
-      "--position",
-      "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111"
-    ],
-    "cwd": "[TMP_BASE]/fake_checkout_tmp_1",
-    "name": "resolving hash 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
-    "stdout": "/path/to/tmp/"
-  },
-  {
-    "cmd": [],
-    "name": "Waiting for chromium@00316c9ddf"
-  },
-  {
-    "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "----",
       "ls",
       "gs://chrome-perf/Linux Builder/full-build-linux_00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111.zip"
     ],
-    "name": "Waiting for chromium@00316c9ddf.gsutil ls",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
+    "name": "gsutil ls (5)"
   },
   {
     "cmd": [],
-    "name": "Waiting for chromium@00316c9ddf.Triggering test job for 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
+    "name": "Triggering test job for 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
     "trigger_specs": [
       {
         "builder_name": "linux_perf_tester",
         "properties": {
           "bisect_config": {
             "command": "src/tools/perf/run_benchmark -v --browser=release smoothness.tough_scrolling_cases",
             "metric": "mean_input_event_latency/mean_input_event_latency",
             "repeat_count": 5,
             "test_type": "perf"
           },
           "job_name": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111-test",
           "parent_build_archive_url": "gs://chrome-perf/Linux Builder/full-build-linux_00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111.zip",
           "parent_got_revision": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
           "revision": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
           "revision_ladder": {
             "chromium": "00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111"
           }
         }
       }
-    ],
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys\nimport time\ntime.sleep(20*60)\nsys.exit(0)\n"
     ],
-    "name": "Waiting for chromium@00316c9ddf.sleeping",
+    "name": "sleeping (2)",
     "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@",
       "@@@STEP_LOG_LINE@python.inline@@@@",
       "@@@STEP_LOG_LINE@python.inline@import sys@@@",
       "@@@STEP_LOG_LINE@python.inline@import time@@@",
       "@@@STEP_LOG_LINE@python.inline@time.sleep(20*60)@@@",
       "@@@STEP_LOG_LINE@python.inline@sys.exit(0)@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "----",
       "ls",
       "gs://chrome-perf/bisect-results/00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111-test.results"
     ],
-    "name": "Waiting for chromium@00316c9ddf.gsutil ls (2)",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
+    "name": "gsutil ls (6)"
   },
   {
     "cmd": [
       "python",
       "-u",
       "RECIPE_MODULE[build::gsutil]/resources/gsutil_wrapper.py",
       "--",
       "[DEPOT_TOOLS]/gsutil.py",
       "----",
       "cat",
       "gs://chrome-perf/bisect-results/00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111-test.results"
     ],
-    "name": "Waiting for chromium@00316c9ddf.gsutil Get test results for build 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
-    "stdout": "/path/to/tmp/",
-    "~followup_annotations": [
-      "@@@STEP_NEST_LEVEL@1@@@"
-    ]
+    "name": "gsutil Get test results for build 00316c9ddfb9d7b4e1ed2fff9fe6d964d2111111",
+    "stdout": "/path/to/tmp/"
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]