And what the meson log shows (in worker/out/Release/meson-logs/)? It seems that the fault has happened either in the middle or right after the openssl source download, and its compilation didn’t even start.
First of all, have you tried regular non-Alpine image?
And if you use Docker you probably want to have regular x86-64 image too. If it is something Alpine-specific then we’ll have to investigate that specifically, I didn’t test it yet.