Mirroring rustup with artifactory

I'm trying to mirror https://static.rust-lang.org with artifactory but I'm running into issues. It looks like I'm only getting the first 1000 entries in the dist/ dir so I never mirror "stable". Some more digging suggests this is an issue with the aws bucket only returning 1000 entries. I did find panamax but that actually downloads the files for offline use where artifactory just indexes the directory structure and caches the files when they are requested so panamax isn't really an option. Has anyone successfully mirrored the rust toolchain with artifactory?

What is artifactory?