ehh sorry I stand corrected, it happened in Hyper-V, not VMware.
Anyway, probably I also deleted the download folder so the panic could have happened during re-downloading the source tarball.
idk does this make more sense like this? e.g. the file system using some kind of buffers and therefore at a later point the network stack runs out of resources?
I saw this happening a few times, every time after heavy file system usage. If I reboot the VM and then re-run the build (possibly including a wget download) I don't get any panic.