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Catching up with async Rust
In December 2023, a minor miracle happened: async fn in traits shipped.
As of Rust 1.39, we already had free-standing async functions:
pub async fn read_hosts() -> eyre::Result<Vec<u8>> {
// etc.
}
…and async functions in impl blocks:
impl HostReader {
pub async fn read_hosts(&self) -> eyre::Result<Vec<u8>> {
// etc.
}
}