After spending a bit of time on it, I ended up finding the source of the problem: the offending crate bandersnatch_vrfs pulls ring-proof from a github repo, and for some reason it pulls a wrong version sometimes.

I checked the version in Cargo.toml from the archived polkadot repo (in my case, I build on top of the archived v1, before the migration to the monorepo), and copy/pasted the correct hash for ring-proof in my Cargo.toml where needed:

source = "git+https://github.com/w3f/ring-proof#0e948f3c28cbacecdd3020403c4841c0eb339213"

After spending a bit of time on it, I ended up finding the source of the problem: the offending crate bandersnatch_vrfs pulls ring-proof from a github repo, and for some reason it pulls a wrong version sometimes.

I checked the version in Cargo.lock from the archived polkadot repo (in my case, I build on top of the archived v1, before the migration to the monorepo), and copy/pasted the correct hash for ring-proof in my Cargo.lock where needed:

source = "git+https://github.com/w3f/ring-proof#0e948f3c28cbacecdd3020403c4841c0eb339213"