We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
master cannot pass "make presubmit"
Current master branch has one failed at "``make presubmit``".

To reproduce: ``git clone https://github.com/google/fuzzbench ; cd fuzzbench ; git submodule update --init ; make install-dependencies ; source ./vene/bin/activate ; make presubmit``

https://github.com/google/fuzzbench/blob/41aa9b4267907185bd51514a6fb335ff70f4990d/experiment/test_measurer.py#L347

E            assert 0 == 3798

Reference: https://google.github.io/fuzzbench/getting-started/prerequisites/

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `conftest.py`
Content:
```
1 # Copyright 2020 Google LLC
2 #
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
6 #
7 #      http://www.apache.org/licenses/LICENSE-2.0
8 #
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
14 """A pytest conftest.py file that defines fixtures and does other things many
15 tests might need (such as using an in-memory SQLite database)."""
16 
17 import os
18 import sqlite3
19 from unittest import mock
20 
21 import pytest
22 import sqlalchemy
23 
24 from common import new_process
25 
26 # Never wait for a timeout so that tests don't take any longer than they need
27 # to.
28 new_process.WAIT_SECONDS = 0
29 
30 # Set this to an in-memory instance of SQLite so that db_utils can be imported
31 # without running a real Postgres database.
32 # pylint: disable=wrong-import-position
33 os.environ['SQL_DATABASE_URL'] = 'sqlite://'
34 
35 from database import utils as db_utils
36 from database import models
37 
38 
39 # Give this a short name since it is a fixture.
40 @pytest.yield_fixture
41 def db():  # pylint: disable=invalid-name
42     """Connect to the SQLite database and create all the expected tables."""
43     db_utils.initialize()
44     models.Base.metadata.create_all(db_utils.engine)
45     with mock.patch('database.utils.cleanup'):
46         yield
47     db_utils.cleanup()
48 
49 
50 @sqlalchemy.event.listens_for(sqlalchemy.engine.Engine, 'connect')
51 def set_sqlite_pragma(connection, _):
52     """Force SQLite to enforce non-null foreign key relationships.
53     Based on
54     https://docs.sqlalchemy.org/en/13/dialects/sqlite.html#foreign-key-support
55     """
56     if not isinstance(connection, sqlite3.Connection):
57         return
58 
59     cursor = connection.cursor()
60     cursor.execute('PRAGMA foreign_keys=ON')
61     cursor.close()
62 
63 
64 @pytest.yield_fixture
65 def environ():
66     """Patch environment."""
67     # TODO(metzman): Make sure this is used by all tests that modify the
68     # environment.
69     patcher = mock.patch.dict(os.environ, {})
70     patcher.start()
71     yield
72     patcher.stop()
73 
74 
75 @pytest.fixture
76 def experiment(tmp_path, environ):  # pylint: disable=redefined-outer-name,unused-argument
77     """Mock an experiment."""
78     os.environ['WORK'] = str(tmp_path)
79     os.environ['EXPERIMENT'] = 'test-experiment'
80     os.environ['CLOUD_EXPERIMENT_BUCKET'] = 'gs://experiment-data'
81     os.environ['CLOUD_WEB_BUCKET'] = 'gs://web-bucket'
82     os.environ['CLOUD_PROJECT'] = 'fuzzbench'
83
```
--- END FILES ---

Please first localize the bug based on the issue statement, and then generate a patch according to the `git diff` format fenced by three backticks.

Here is an example:

```diff
diff --git a/examples/server_async.py b/examples/server_async.py
--- a/examples/server_async.py
+++ b/examples/server_async.py
@@ -313,4 +313,4 @@
 
 
 if __name__ == "__main__":
-    asyncio.run(run_async_server("."), debug=True)
+    asyncio.run(run_async_server(), debug=True)
diff --git a/examples/server_sync.py b/examples/server_sync.py
--- a/examples/server_sync.py
+++ b/examples/server_sync.py
@@ -313,5 +313,5 @@
 
 
 if __name__ == "__main__":
-    server = run_sync_server(".")
+    server = run_sync_server()
     server.shutdown()

```

diff --git a/conftest.py b/conftest.py
--- a/conftest.py
+++ b/conftest.py
@@ -73,9 +73,9 @@
 
 
 @pytest.fixture
-def experiment(tmp_path, environ):  # pylint: disable=redefined-outer-name,unused-argument
+def experiment(environ):  # pylint: disable=redefined-outer-name,unused-argument
     """Mock an experiment."""
-    os.environ['WORK'] = str(tmp_path)
+    os.environ['WORK'] = '/work'
     os.environ['EXPERIMENT'] = 'test-experiment'
     os.environ['CLOUD_EXPERIMENT_BUCKET'] = 'gs://experiment-data'
     os.environ['CLOUD_WEB_BUCKET'] = 'gs://web-bucket'

{"golden_diff": "diff --git a/conftest.py b/conftest.py\n--- a/conftest.py\n+++ b/conftest.py\n@@ -73,9 +73,9 @@\n \n \n @pytest.fixture\n-def experiment(tmp_path, environ):  # pylint: disable=redefined-outer-name,unused-argument\n+def experiment(environ):  # pylint: disable=redefined-outer-name,unused-argument\n     \"\"\"Mock an experiment.\"\"\"\n-    os.environ['WORK'] = str(tmp_path)\n+    os.environ['WORK'] = '/work'\n     os.environ['EXPERIMENT'] = 'test-experiment'\n     os.environ['CLOUD_EXPERIMENT_BUCKET'] = 'gs://experiment-data'\n     os.environ['CLOUD_WEB_BUCKET'] = 'gs://web-bucket'\n", "issue": "master cannot pass \"make presubmit\"\nCurrent master branch has one failed at \"``make presubmit``\".\r\n\r\nTo reproduce: ``git clone https://github.com/google/fuzzbench ; cd fuzzbench ; git submodule update --init ; make install-dependencies ; source ./vene/bin/activate ; make presubmit``\r\n\r\nhttps://github.com/google/fuzzbench/blob/41aa9b4267907185bd51514a6fb335ff70f4990d/experiment/test_measurer.py#L347\r\n\r\nE            assert 0 == 3798\r\n\r\nReference: https://google.github.io/fuzzbench/getting-started/prerequisites/\n", "before_files": [{"content": "# Copyright 2020 Google LLC\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#      http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\"\"\"A pytest conftest.py file that defines fixtures and does other things many\ntests might need (such as using an in-memory SQLite database).\"\"\"\n\nimport os\nimport sqlite3\nfrom unittest import mock\n\nimport pytest\nimport sqlalchemy\n\nfrom common import new_process\n\n# Never wait for a timeout so that tests don't take any longer than they need\n# to.\nnew_process.WAIT_SECONDS = 0\n\n# Set this to an in-memory instance of SQLite so that db_utils can be imported\n# without running a real Postgres database.\n# pylint: disable=wrong-import-position\nos.environ['SQL_DATABASE_URL'] = 'sqlite://'\n\nfrom database import utils as db_utils\nfrom database import models\n\n\n# Give this a short name since it is a fixture.\n@pytest.yield_fixture\ndef db():  # pylint: disable=invalid-name\n    \"\"\"Connect to the SQLite database and create all the expected tables.\"\"\"\n    db_utils.initialize()\n    models.Base.metadata.create_all(db_utils.engine)\n    with mock.patch('database.utils.cleanup'):\n        yield\n    db_utils.cleanup()\n\n\n@sqlalchemy.event.listens_for(sqlalchemy.engine.Engine, 'connect')\ndef set_sqlite_pragma(connection, _):\n    \"\"\"Force SQLite to enforce non-null foreign key relationships.\n    Based on\n    https://docs.sqlalchemy.org/en/13/dialects/sqlite.html#foreign-key-support\n    \"\"\"\n    if not isinstance(connection, sqlite3.Connection):\n        return\n\n    cursor = connection.cursor()\n    cursor.execute('PRAGMA foreign_keys=ON')\n    cursor.close()\n\n\n@pytest.yield_fixture\ndef environ():\n    \"\"\"Patch environment.\"\"\"\n    # TODO(metzman): Make sure this is used by all tests that modify the\n    # environment.\n    patcher = mock.patch.dict(os.environ, {})\n    patcher.start()\n    yield\n    patcher.stop()\n\n\n@pytest.fixture\ndef experiment(tmp_path, environ):  # pylint: disable=redefined-outer-name,unused-argument\n    \"\"\"Mock an experiment.\"\"\"\n    os.environ['WORK'] = str(tmp_path)\n    os.environ['EXPERIMENT'] = 'test-experiment'\n    os.environ['CLOUD_EXPERIMENT_BUCKET'] = 'gs://experiment-data'\n    os.environ['CLOUD_WEB_BUCKET'] = 'gs://web-bucket'\n    os.environ['CLOUD_PROJECT'] = 'fuzzbench'\n", "path": "conftest.py"}], "after_files": [{"content": "# Copyright 2020 Google LLC\n#\n# Licensed under the Apache License, Version 2.0 (the \"License\");\n# you may not use this file except in compliance with the License.\n# You may obtain a copy of the License at\n#\n#      http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License for the specific language governing permissions and\n# limitations under the License.\n\"\"\"A pytest conftest.py file that defines fixtures and does other things many\ntests might need (such as using an in-memory SQLite database).\"\"\"\n\nimport os\nimport sqlite3\nfrom unittest import mock\n\nimport pytest\nimport sqlalchemy\n\nfrom common import new_process\n\n# Never wait for a timeout so that tests don't take any longer than they need\n# to.\nnew_process.WAIT_SECONDS = 0\n\n# Set this to an in-memory instance of SQLite so that db_utils can be imported\n# without running a real Postgres database.\n# pylint: disable=wrong-import-position\nos.environ['SQL_DATABASE_URL'] = 'sqlite://'\n\nfrom database import utils as db_utils\nfrom database import models\n\n\n# Give this a short name since it is a fixture.\n@pytest.yield_fixture\ndef db():  # pylint: disable=invalid-name\n    \"\"\"Connect to the SQLite database and create all the expected tables.\"\"\"\n    db_utils.initialize()\n    models.Base.metadata.create_all(db_utils.engine)\n    with mock.patch('database.utils.cleanup'):\n        yield\n    db_utils.cleanup()\n\n\n@sqlalchemy.event.listens_for(sqlalchemy.engine.Engine, 'connect')\ndef set_sqlite_pragma(connection, _):\n    \"\"\"Force SQLite to enforce non-null foreign key relationships.\n    Based on\n    https://docs.sqlalchemy.org/en/13/dialects/sqlite.html#foreign-key-support\n    \"\"\"\n    if not isinstance(connection, sqlite3.Connection):\n        return\n\n    cursor = connection.cursor()\n    cursor.execute('PRAGMA foreign_keys=ON')\n    cursor.close()\n\n\n@pytest.yield_fixture\ndef environ():\n    \"\"\"Patch environment.\"\"\"\n    # TODO(metzman): Make sure this is used by all tests that modify the\n    # environment.\n    patcher = mock.patch.dict(os.environ, {})\n    patcher.start()\n    yield\n    patcher.stop()\n\n\n@pytest.fixture\ndef experiment(environ):  # pylint: disable=redefined-outer-name,unused-argument\n    \"\"\"Mock an experiment.\"\"\"\n    os.environ['WORK'] = '/work'\n    os.environ['EXPERIMENT'] = 'test-experiment'\n    os.environ['CLOUD_EXPERIMENT_BUCKET'] = 'gs://experiment-data'\n    os.environ['CLOUD_WEB_BUCKET'] = 'gs://web-bucket'\n    os.environ['CLOUD_PROJECT'] = 'fuzzbench'\n", "path": "conftest.py"}]}