youtube: WARNING: unable to extract description; video is private

[rich-coe]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2020.06.06
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar bug reports including closed ones
• I've read bugs section in FAQ

Verbose log

youtube-dl -f mp4 --verbose https://www.youtube.com/watch?v=yrq2bRvvG8E
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-f', u'mp4', u'--verbose', u'https://www.youtube.com/watch?v=yrq2bRvvG8E']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.06.06
[debug] Python version 2.7.18 (CPython) - Linux-5.6.14-1-default-x86_64-with-glibc2.2.5
[debug] exe versions: ffmpeg 4.2.2, ffprobe 4.2.2
[debug] Proxy map: {}
[youtube] yrq2bRvvG8E: Downloading webpage
[youtube] yrq2bRvvG8E: Downloading embed webpage
[youtube] yrq2bRvvG8E: Refetching age-gated info webpage
WARNING: Unable to extract video title
WARNING: unable to extract description; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
ERROR: Content Warning
If the owner of this video has granted you access, please sign in.
       This video is private.
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 797, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 530, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 2142, in _real_extract
    raise ExtractorError(error_message, expected=True)
ExtractorError: Content Warning
If the owner of this video has granted you access, please sign in.
       This video is private.

Description

I'm reporting this bug because youtube-dl asked me to.
The video is no longer available and has been marked private.
I did not find a duplicate open or closed issue.
Sorry if this is a dup.