Trouble w. Docker & Space on My Cache Drive

[helpermonkey]

Hi there,

So I run my apps with all of the app data stored on my cached drive. I also use that for my DLs....it's 125gb but from what i can tell - it keeps "running out of space" (the docker img itself is 21gb... is that normal i have no idea?). For some reason, recently, I am running into problems but i'm not entirely sure why. So for example - right now i'm trying to DL a 35 GB "file". It's actually a rar that i guess needs to be unpacked. But i keep getting a Failure in tempfile.mkstemp message. I'm guessing that it's having a hard time combining the rar files but even as i look at it right now i have 107gb used and 17.3gb free .... so i'm presuming that 21gb is the docker image - maybe .5 is the app data .... so any thoughts on what to do?

here's my log:

https://controlc.com/d1c40660

here's my docker-compose for that docker

https://pastebin.com/GqB2N8F8