EACCES: permission denied when renaming file on extension installation #11641

Environment data

• VS Code version: 1.44.2
• Extension version (available under the Extensions sidebar): 2020.4.76186
• OS and version: WSL Ubuntu
• Python version (& distribution if applicable, e.g. Anaconda): 3.6.9
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Relevant/affected Python packages and their versions: N/A
• Relevant/affected Python-related VS Code extensions and their versions: N/A
• Jedi or Language Server? (i.e. what is "python.jediEnabled" set to; more info How to update the language server to the latest stable version #3977):N/A
• Value of the python.languageServer setting: N/A

Expected behaviour

Extension installs without issue.

Actual behaviour

Extension fails to install in WSL and returns the error message:
EACCES: permission denied, rename '/home/moses/.vscode-server/extensions/.ms-python.python-2020.4.76186' -> '/home/moses/.vscode-server/extensions/ms-python.python-2020.4.76186'

Steps to reproduce:

[NOTE: Self-contained, minimal reproducing code samples are extremely helpful and will expedite addressing your issue]

1. Navigate to the extension's page in the extensions marketplace.
2. Click the Install in WSL: Ubuntu button.

Logs

No Output

  ERR Error while installing 'ms-python.python' extension in the remote server. EACCES: permission denied, rename '/home/moses/.vscode-server/extensions/.ms-python.python-2020.4.76186' -> '/home/moses/.vscode-server/extensions/ms-python.python-2020.4.76186'
log.ts:185  INFO Trying to download 'ms-python.python' extension locally and install
log.ts:197   ERR Error: EACCES: permission denied, rename '/home/moses/.vscode-server/extensions/.ms-python.python-2020.4.76186' -> '/home/moses/.vscode-server/extensions/ms-python.python-2020.4.76186'
notificationsAlerts.ts:38 Error: EACCES: permission denied, rename '/home/moses/.vscode-server/extensions/.ms-python.python-2020.4.76186' -> '/home/moses/.vscode-server/extensions/ms-python.python-2020.4.76186'