Why does enabling rustls-tls require quinn?

[QuentinPerez]

Hi 👋

I noticed that enabling rustls-tls pulls in quinn. Is this expected? I checked reqwest's Cargo.toml but didn't notice anything weird.

Here’s a fresh cargo project for reference.

[package]
name = "hello"
version = "0.1.0"
edition = "2021"

[dependencies]
reqwest = { version = "0.12", default-features = false, features = ["rustls-tls"] }

[[package]]
name = "reqwest"
version = "0.12.8"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "f713147fbe92361e52392c73b8c9e48c04c6625bce969ef54dc901e58e042a7b"
dependencies = [
 "base64",
 "bytes",
 "futures-core",
 "futures-util",
 "http",
 "http-body",
 "http-body-util",
 "hyper",
 "hyper-rustls",
 "hyper-util",
 "ipnet",
 "js-sys",
 "log",
 "mime",
 "once_cell",
 "percent-encoding",
 "pin-project-lite",
 "quinn",                             # <- HERE
 "rustls",
 "rustls-pemfile",
 "rustls-pki-types",
 "serde",
 "serde_json",
 "serde_urlencoded",
 "sync_wrapper",
 "tokio",
 "tokio-rustls",
 "tower-service",
 "url",
 "wasm-bindgen",
 "wasm-bindgen-futures",
 "web-sys",
 "webpki-roots",
 "windows-registry",
]

[seanmonstar]

It appears in your Cargo.lock because of a bug: rust-lang/cargo#10801

It doesn't get compiled, though. Previously: #2320 #2318