Plain text outputs to stdout invalidate the non-text outputs formatting

[yilei]

Bug description

https://github.com/PyCQA/pylint/blob/d668f641ef5d5794f912cd5a23292bf493290905/pylint/utils/ast_walker.py#L98 prints the exception error message to stdout, making the output invalid.

Configuration

No response

Command used

$ cat myfile.py
def myfunc():
  try:
    @property
    def myfunc():
      return None
  except TypeError:
    pass

  @myfunc.setter
  def myfunc():
    pass

  return myfunc()
$ pylint --output-format=json myfile.py 2>/dev/null

Pylint output

Exception on node <Call l.13 at 0x7ff8da87f3a0> in file 'myfile.py'
[
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 2,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 2 spaces, expected 4",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 3,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 4 spaces, expected 8",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 4,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 4 spaces, expected 8",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 5,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 6 spaces, expected 12",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 6,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 2 spaces, expected 4",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 7,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 4 spaces, expected 8",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 9,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 2 spaces, expected 4",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 10,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 2 spaces, expected 4",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 11,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 4 spaces, expected 8",
        "message-id": "W0311"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "",
        "line": 13,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "bad-indentation",
        "message": "Bad indentation. Found 2 spaces, expected 4",
        "message-id": "W0311"
    },
    {
        "type": "convention",
        "module": "myfile",
        "obj": "",
        "line": 1,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "missing-module-docstring",
        "message": "Missing module docstring",
        "message-id": "C0114"
    },
    {
        "type": "convention",
        "module": "myfile",
        "obj": "myfunc",
        "line": 1,
        "column": 0,
        "endLine": 1,
        "endColumn": 10,
        "path": "myfile.py",
        "symbol": "missing-function-docstring",
        "message": "Missing function or method docstring",
        "message-id": "C0116"
    },
    {
        "type": "warning",
        "module": "myfile",
        "obj": "myfunc.myfunc",
        "line": 4,
        "column": 4,
        "endLine": 4,
        "endColumn": 14,
        "path": "myfile.py",
        "symbol": "redefined-outer-name",
        "message": "Redefining name 'myfunc' from outer scope (line 1)",
        "message-id": "W0621"
    },
    {
        "type": "fatal",
        "module": "myfile",
        "obj": "",
        "line": 1,
        "column": 0,
        "endLine": null,
        "endColumn": null,
        "path": "myfile.py",
        "symbol": "astroid-error",
        "message": "myfile.py: Fatal error while checking 'myfile.py'. Please open an issue in our bug tracker so we address this. There is a pre-filled template that you can use in '~/.cache/pylint/pylint-crash-2022-05-12-14.txt'.",
        "message-id": "F0002"
    }
]

### Expected behavior

pylint should write valid json to stdout

### Pylint version

```shell
pylint 2.13.8
astroid 2.11.4
Python 3.9.10 (main, Mar 16 2022, 06:54:08)
[GCC 11.2.0]

OS / Environment

No response

Additional dependencies

No response

[yilei]

I have an upcoming PR to address this.