Another Azure Pipeline failure on my https://github.com/python/cpython/pull/19769 PR, it looks like a random networking failure.

Sadly, I had to close/reopen my PR since there is no button to only restart the failure job, or even restart all Azure Pipeline jobs. This retrigger all CI jobs :-(

https://dev.azure.com/Python/cpython/_build/results?buildId=61891&view=logs&j=c83831cd-3752-5cc7-2f01-8276919eb334&t=6bd3fafc-d115-560e-4a08-fa9326c4b5c7

The win64 job of Azure Pipelines PR fails to build Python because it failed to fetch bzip2:

Fetching bzip2-1.0.6...
(...)
  File "C:\hostedtoolcache\windows\Python\3.8.2\x64\lib\http\client.py", line 915, in connect
    self.sock = self._create_connection(
  File "C:\hostedtoolcache\windows\Python\3.8.2\x64\lib\socket.py", line 787, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "C:\hostedtoolcache\windows\Python\3.8.2\x64\lib\socket.py", line 918, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 11001] getaddrinfo failed
(...)
  File "C:\hostedtoolcache\windows\Python\3.8.2\x64\lib\urllib\request.py", line 1362, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
  File "C:\hostedtoolcache\windows\Python\3.8.2\x64\lib\urllib\request.py", line 1322, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 11001] getaddrinfo failed>
(...)
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\blocksort.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\bzlib.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\compress.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\crctable.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\decompress.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\huffman.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]
c1 : fatal error C1083: Cannot open source file: 'd:\a\1\b\externals\bzip2-1.0.6\randtable.c': No such file or directory [D:\a\1\s\PCbuild\_bz2.vcxproj]