We are currently solving the following issue within our repository. Here is the issue text:
--- BEGIN ISSUE ---
Include Rust version in DEBUG ASSISTENCE message?
I'm not sure what the best way to do this is but it seems like it would be helpful to include the output of `rustc -V` in the DEBUG ASSISTENCE.

--- END ISSUE ---

Below are some code segments, each from a relevant file. One or more of these files may contain bugs.
--- BEGIN FILES ---
Path: `setup.py`
Content:
```
1 #!/usr/bin/env python
2 
3 # This file is dual licensed under the terms of the Apache License, Version
4 # 2.0, and the BSD License. See the LICENSE file in the root of this repository
5 # for complete details.
6 
7 import os
8 import platform
9 import sys
10 
11 from setuptools import setup
12 
13 try:
14     from setuptools_rust import RustExtension
15 except ImportError:
16     print(
17         """
18         =============================DEBUG ASSISTANCE==========================
19         If you are seeing an error here please try the following to
20         successfully install cryptography:
21 
22         Upgrade to the latest pip and try again. This will fix errors for most
23         users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip
24         =============================DEBUG ASSISTANCE==========================
25         """
26     )
27     raise
28 
29 
30 base_dir = os.path.dirname(__file__)
31 src_dir = os.path.join(base_dir, "src")
32 
33 # When executing the setup.py, we need to be able to import ourselves, this
34 # means that we need to add the src/ directory to the sys.path.
35 sys.path.insert(0, src_dir)
36 
37 try:
38     # See setup.cfg for most of the config metadata.
39     setup(
40         cffi_modules=[
41             "src/_cffi_src/build_openssl.py:ffi",
42         ],
43         rust_extensions=[
44             RustExtension(
45                 "_rust",
46                 "src/rust/Cargo.toml",
47                 py_limited_api=True,
48                 # Enable abi3 mode if we're not using PyPy.
49                 features=(
50                     []
51                     if platform.python_implementation() == "PyPy"
52                     else ["pyo3/abi3-py36"]
53                 ),
54                 rust_version=">=1.48.0",
55             )
56         ],
57     )
58 except:  # noqa: E722
59     # Note: This is a bare exception that re-raises so that we don't interfere
60     # with anything the installation machinery might want to do. Because we
61     # print this for any exception this msg can appear (e.g. in verbose logs)
62     # even if there's no failure. For example, SetupRequirementsError is raised
63     # during PEP517 building and prints this text. setuptools raises SystemExit
64     # when compilation fails right now, but it's possible this isn't stable
65     # or a public API commitment so we'll remain ultra conservative.
66 
67     import pkg_resources
68 
69     print(
70         """
71     =============================DEBUG ASSISTANCE=============================
72     If you are seeing a compilation error please try the following steps to
73     successfully install cryptography:
74     1) Upgrade to the latest pip and try again. This will fix errors for most
75        users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip
76     2) Read https://cryptography.io/en/latest/installation/ for specific
77        instructions for your platform.
78     3) Check our frequently asked questions for more information:
79        https://cryptography.io/en/latest/faq/
80     4) Ensure you have a recent Rust toolchain installed:
81        https://cryptography.io/en/latest/installation/#rust
82     """
83     )
84     print(f"    Python: {'.'.join(str(v) for v in sys.version_info[:3])}")
85     print(f"    platform: {platform.platform()}")
86     for dist in ["pip", "setuptools", "setuptools_rust"]:
87         try:
88             version = pkg_resources.get_distribution(dist).version
89         except pkg_resources.DistributionNotFound:
90             version = "n/a"
91         print(f"    {dist}: {version}")
92     print(
93         """\
94     =============================DEBUG ASSISTANCE=============================
95     """
96     )
97     raise
98
```
--- 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/setup.py b/setup.py
--- a/setup.py
+++ b/setup.py
@@ -6,6 +6,9 @@
 
 import os
 import platform
+import re
+import shutil
+import subprocess
 import sys
 
 from setuptools import setup
@@ -89,6 +92,22 @@
         except pkg_resources.DistributionNotFound:
             version = "n/a"
         print(f"    {dist}: {version}")
+    version = "n/a"
+    if shutil.which("rustc") is not None:
+        try:
+            # If for any reason `rustc --version` fails, silently ignore it
+            rustc_output = subprocess.run(
+                ["rustc", "--version"],
+                capture_output=True,
+                timeout=0.5,
+                encoding="utf8",
+                check=True,
+            ).stdout
+            version = re.sub("^rustc ", "", rustc_output.strip())
+        except subprocess.SubprocessError:
+            pass
+    print(f"    rustc: {version}")
+
     print(
         """\
     =============================DEBUG ASSISTANCE=============================

{"golden_diff": "diff --git a/setup.py b/setup.py\n--- a/setup.py\n+++ b/setup.py\n@@ -6,6 +6,9 @@\n \n import os\n import platform\n+import re\n+import shutil\n+import subprocess\n import sys\n \n from setuptools import setup\n@@ -89,6 +92,22 @@\n         except pkg_resources.DistributionNotFound:\n             version = \"n/a\"\n         print(f\"    {dist}: {version}\")\n+    version = \"n/a\"\n+    if shutil.which(\"rustc\") is not None:\n+        try:\n+            # If for any reason `rustc --version` fails, silently ignore it\n+            rustc_output = subprocess.run(\n+                [\"rustc\", \"--version\"],\n+                capture_output=True,\n+                timeout=0.5,\n+                encoding=\"utf8\",\n+                check=True,\n+            ).stdout\n+            version = re.sub(\"^rustc \", \"\", rustc_output.strip())\n+        except subprocess.SubprocessError:\n+            pass\n+    print(f\"    rustc: {version}\")\n+\n     print(\n         \"\"\"\\\n     =============================DEBUG ASSISTANCE=============================\n", "issue": "Include Rust version in DEBUG ASSISTENCE message?\nI'm not sure what the best way to do this is but it seems like it would be helpful to include the output of `rustc -V` in the DEBUG ASSISTENCE.\n", "before_files": [{"content": "#!/usr/bin/env python\n\n# This file is dual licensed under the terms of the Apache License, Version\n# 2.0, and the BSD License. See the LICENSE file in the root of this repository\n# for complete details.\n\nimport os\nimport platform\nimport sys\n\nfrom setuptools import setup\n\ntry:\n    from setuptools_rust import RustExtension\nexcept ImportError:\n    print(\n        \"\"\"\n        =============================DEBUG ASSISTANCE==========================\n        If you are seeing an error here please try the following to\n        successfully install cryptography:\n\n        Upgrade to the latest pip and try again. This will fix errors for most\n        users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip\n        =============================DEBUG ASSISTANCE==========================\n        \"\"\"\n    )\n    raise\n\n\nbase_dir = os.path.dirname(__file__)\nsrc_dir = os.path.join(base_dir, \"src\")\n\n# When executing the setup.py, we need to be able to import ourselves, this\n# means that we need to add the src/ directory to the sys.path.\nsys.path.insert(0, src_dir)\n\ntry:\n    # See setup.cfg for most of the config metadata.\n    setup(\n        cffi_modules=[\n            \"src/_cffi_src/build_openssl.py:ffi\",\n        ],\n        rust_extensions=[\n            RustExtension(\n                \"_rust\",\n                \"src/rust/Cargo.toml\",\n                py_limited_api=True,\n                # Enable abi3 mode if we're not using PyPy.\n                features=(\n                    []\n                    if platform.python_implementation() == \"PyPy\"\n                    else [\"pyo3/abi3-py36\"]\n                ),\n                rust_version=\">=1.48.0\",\n            )\n        ],\n    )\nexcept:  # noqa: E722\n    # Note: This is a bare exception that re-raises so that we don't interfere\n    # with anything the installation machinery might want to do. Because we\n    # print this for any exception this msg can appear (e.g. in verbose logs)\n    # even if there's no failure. For example, SetupRequirementsError is raised\n    # during PEP517 building and prints this text. setuptools raises SystemExit\n    # when compilation fails right now, but it's possible this isn't stable\n    # or a public API commitment so we'll remain ultra conservative.\n\n    import pkg_resources\n\n    print(\n        \"\"\"\n    =============================DEBUG ASSISTANCE=============================\n    If you are seeing a compilation error please try the following steps to\n    successfully install cryptography:\n    1) Upgrade to the latest pip and try again. This will fix errors for most\n       users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip\n    2) Read https://cryptography.io/en/latest/installation/ for specific\n       instructions for your platform.\n    3) Check our frequently asked questions for more information:\n       https://cryptography.io/en/latest/faq/\n    4) Ensure you have a recent Rust toolchain installed:\n       https://cryptography.io/en/latest/installation/#rust\n    \"\"\"\n    )\n    print(f\"    Python: {'.'.join(str(v) for v in sys.version_info[:3])}\")\n    print(f\"    platform: {platform.platform()}\")\n    for dist in [\"pip\", \"setuptools\", \"setuptools_rust\"]:\n        try:\n            version = pkg_resources.get_distribution(dist).version\n        except pkg_resources.DistributionNotFound:\n            version = \"n/a\"\n        print(f\"    {dist}: {version}\")\n    print(\n        \"\"\"\\\n    =============================DEBUG ASSISTANCE=============================\n    \"\"\"\n    )\n    raise\n", "path": "setup.py"}], "after_files": [{"content": "#!/usr/bin/env python\n\n# This file is dual licensed under the terms of the Apache License, Version\n# 2.0, and the BSD License. See the LICENSE file in the root of this repository\n# for complete details.\n\nimport os\nimport platform\nimport re\nimport shutil\nimport subprocess\nimport sys\n\nfrom setuptools import setup\n\ntry:\n    from setuptools_rust import RustExtension\nexcept ImportError:\n    print(\n        \"\"\"\n        =============================DEBUG ASSISTANCE==========================\n        If you are seeing an error here please try the following to\n        successfully install cryptography:\n\n        Upgrade to the latest pip and try again. This will fix errors for most\n        users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip\n        =============================DEBUG ASSISTANCE==========================\n        \"\"\"\n    )\n    raise\n\n\nbase_dir = os.path.dirname(__file__)\nsrc_dir = os.path.join(base_dir, \"src\")\n\n# When executing the setup.py, we need to be able to import ourselves, this\n# means that we need to add the src/ directory to the sys.path.\nsys.path.insert(0, src_dir)\n\ntry:\n    # See setup.cfg for most of the config metadata.\n    setup(\n        cffi_modules=[\n            \"src/_cffi_src/build_openssl.py:ffi\",\n        ],\n        rust_extensions=[\n            RustExtension(\n                \"_rust\",\n                \"src/rust/Cargo.toml\",\n                py_limited_api=True,\n                # Enable abi3 mode if we're not using PyPy.\n                features=(\n                    []\n                    if platform.python_implementation() == \"PyPy\"\n                    else [\"pyo3/abi3-py36\"]\n                ),\n                rust_version=\">=1.48.0\",\n            )\n        ],\n    )\nexcept:  # noqa: E722\n    # Note: This is a bare exception that re-raises so that we don't interfere\n    # with anything the installation machinery might want to do. Because we\n    # print this for any exception this msg can appear (e.g. in verbose logs)\n    # even if there's no failure. For example, SetupRequirementsError is raised\n    # during PEP517 building and prints this text. setuptools raises SystemExit\n    # when compilation fails right now, but it's possible this isn't stable\n    # or a public API commitment so we'll remain ultra conservative.\n\n    import pkg_resources\n\n    print(\n        \"\"\"\n    =============================DEBUG ASSISTANCE=============================\n    If you are seeing a compilation error please try the following steps to\n    successfully install cryptography:\n    1) Upgrade to the latest pip and try again. This will fix errors for most\n       users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip\n    2) Read https://cryptography.io/en/latest/installation/ for specific\n       instructions for your platform.\n    3) Check our frequently asked questions for more information:\n       https://cryptography.io/en/latest/faq/\n    4) Ensure you have a recent Rust toolchain installed:\n       https://cryptography.io/en/latest/installation/#rust\n    \"\"\"\n    )\n    print(f\"    Python: {'.'.join(str(v) for v in sys.version_info[:3])}\")\n    print(f\"    platform: {platform.platform()}\")\n    for dist in [\"pip\", \"setuptools\", \"setuptools_rust\"]:\n        try:\n            version = pkg_resources.get_distribution(dist).version\n        except pkg_resources.DistributionNotFound:\n            version = \"n/a\"\n        print(f\"    {dist}: {version}\")\n    version = \"n/a\"\n    if shutil.which(\"rustc\") is not None:\n        try:\n            # If for any reason `rustc --version` fails, silently ignore it\n            rustc_output = subprocess.run(\n                [\"rustc\", \"--version\"],\n                capture_output=True,\n                timeout=0.5,\n                encoding=\"utf8\",\n                check=True,\n            ).stdout\n            version = re.sub(\"^rustc \", \"\", rustc_output.strip())\n        except subprocess.SubprocessError:\n            pass\n    print(f\"    rustc: {version}\")\n\n    print(\n        \"\"\"\\\n    =============================DEBUG ASSISTANCE=============================\n    \"\"\"\n    )\n    raise\n", "path": "setup.py"}]}