deps: reduce hf-hub's transitive dependencies#5
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Replace the default native-tls/OpenSSL backend for hf-hub with the pure-Rust rustls-tls + ureq feature set, removing a large number of platform-specific and OpenSSL-related transitive dependencies.
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Overview
Replace the default native-tls/OpenSSL backend for hf-hub with the pure-Rust rustls-tls + ureq feature set, removing a large number of platform-specific and OpenSSL-related transitive dependencies.
This pr removes native-tls and openssl-sys from the dependency tree
Related failure on dynamo side -
https://github.com/ai-dynamo/dynamo/actions/runs/23097117690/job/67091453263?pr=7387
Related comment in dynamo PR: ai-dynamo/dynamo#7387 (comment)
Details
Issue: The fastokens crate (v0.1.0) declares hf-hub = "0.4.3" with default features, which pulls in native-tls and openssl-sys. Dynamo's deny.toml explicitly bans both crates (lines 63-64), causing cargo-deny to fail in CI.
The dependency chain is:
Dynamo's own hf-hub declaration uses default-features = false with rustls-tls, but Cargo's feature unification merges both — so native-tls still gets enabled.
Before:
After:
This disables the default features (which include native-tls, tokio, num_cpus, etc.) and opts into the pure-Rust TLS stack (rustls + ureq) instead. The result is:
native-tls, openssl-sys, hyper-tls, tokio-native-tls, and several other platform-specific crates are completely removed from the dependency tree
The cargo-deny ban is no longer triggered
576 lines removed from Cargo.lock, 94 added — a significant dependency reduction overall