Bug: Checking for yanked crates fails with local registry

[sgasse]

Describe the bug

When using a local registry mirror setup with cargo-local-registry, cargo deny check fails to check for yanked versions.

To reproduce

1. Install cargo-local-registry
2. Run cargo local-registry --sync Cargo.lock registry
3. Update .cargo/config.toml according to the instructions, replacing crates.io with the local registry
4. Run cargo deny check

Every dependency will be reported with something like this:

warning[index-failure]: unable to check for yanked crates
   ┌─ /<censored>/workspace/examples/local_reg_yanked/Cargo.lock:15:1
   │
15 │ tokio 1.38.0 registry+https://github.com/rust-lang/crates.io-index
   │ ------------------------------------------------------------------ crate whose registry we failed to query
   │
   = the url '/<censored>/workspace/examples/local_reg_yanked/registry' is invalid
   = tokio v1.38.0
     └── local_reg_yanked v0.1.0

cargo-deny version

0.14.24

What OS were you running cargo-deny on?

Linux

Additional context

I don't know if a local registry mirror created with cargo-local-registry theoretically contains the information about yanked crates. If so, did the way cargo deny queries for it change? I think this still worked a while back with the same local registry setup.