Installing 3.0 rc2 with old version of pip hangs

[dakshvar22]

Rasa Open Source version

3.0.0rc2

Rasa SDK version

No response

Rasa X version

No response

Python version

3.8

What operating system are you using?

OSX

What happened?

I created a fresh virtual environment with miniconda and tried installing 3.0.0rc2 with pip. My pip version was 21.2.4. The command pip install rasa==3.0.0rc2 just gets stuck while trying to install the rsa library. Here are some logs of the relevant portion of the install:

Collecting rsa<5,>=3.1.4
  Downloading rsa-4.7.1-py3-none-any.whl (36 kB)
INFO: This is taking longer than usual. You might need to provide the dependency resolver with stricter constraints to reduce runtime. If you want to abort this run, you can press Ctrl + C to do so. To improve how pip performs, tell us what happened here: https://pip.pypa.io/surveys/backtracking
  Using cached rsa-4.7-py3-none-any.whl (34 kB)
  Using cached rsa-4.6-py3-none-any.whl (47 kB)
  Downloading rsa-4.5-py2.py3-none-any.whl (36 kB)
  Downloading rsa-4.4.1-py2.py3-none-any.whl (33 kB)
  Downloading rsa-4.3-py2.py3-none-any.whl (36 kB)
  Using cached rsa-4.2.tar.gz (46 kB)
INFO: pip is looking at multiple versions of rsa to determine which version is compatible with other requirements. This could take a while.
  Downloading rsa-4.1-py3-none-any.whl (32 kB)
  Using cached rsa-4.0-py2.py3-none-any.whl (38 kB)
  Downloading rsa-3.4.2-py2.py3-none-any.whl (46 kB)
     |████████████████████████████████| 46 kB 6.0 MB/s
  Downloading rsa-3.4.1-py2.py3-none-any.whl (46 kB)
     |████████████████████████████████| 46 kB 4.5 MB/s
  Downloading rsa-3.4-py2.py3-none-any.whl (46 kB)
     |████████████████████████████████| 46 kB 5.7 MB/s

I terminated the install after 25 mins or so.

Next, I upgraded my pip version with pip install -U pip and that brought in pip==21.3.1 and re-executing pip install rasa==3.0.0rc2 worked like a charm.

Can we put this known information in our docs or event better check if there is a fix?

Command / Request

pip install rasa==3.0.0rc2

Relevant log output

No response

[Horizon733]

Yes, I face the same issue, with
Pip version: 21.2.4
Python version: 3.8.12
Virtual Environment: Conda