archived pyAV versions

[frankenmatthias]

I am working with a Docker in which I rely on an older version of av, which was previously installed as "pip install av==8.0.3".
For multiple reasons, I cannot (right now) simply use a more recent version of av.

Last time the image was built (about 4mos ago), the logs suggest installation was done from a wheel:

...
#4 1.363 Collecting av==8.0.3
#4 1.374   Downloading av-8.0.3-cp36-cp36m-manylinux2010_x86_64.whl (37.2 MB)
...

However, making a small adjustment elsewhere in the Docker image, I cannot right now rebuild it. It seems the culprit is that pip can no longer find the wheel "av-8.0.3-cp36-cp36m-manylinux2010_x86_64.whl". I can also not find it manually on pypi. Can I find archived wheels somewhere? Specifically this one for linuc x86_64, python 3.6 and av 8.0.3?

FYI, attached is the error messages I get when trying to build av using pip install av==8.0.3. If there is a quick fix that would allow me to build the wheel, that would be fine as well.
av_error.txt