signature: allow AFIT globally (#1830)

Author: tarcieri

signature/src/lib.rs

@@ -6,6 +6,7 @@
 )]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![forbid(unsafe_code)]
+#![allow(async_fn_in_trait)]
 #![warn(
     clippy::mod_module_files,
     clippy::unwrap_used,

signature/src/signer.rs

@@ -189,7 +189,6 @@ impl<S, T: RandomizedSigner<S>> RandomizedSignerMut<S> for T {
 /// (e.g. client for a Cloud KMS or HSM), returning a digital signature.
 ///
 /// This trait is an async equivalent of the [`Signer`] trait.
-#[allow(async_fn_in_trait)]
 pub trait AsyncSigner<S> {
     /// Attempt to sign the given message, returning a digital signature on
     /// success, or an error if something went wrong.
@@ -212,7 +211,6 @@ where
 ///
 /// This trait is an async equivalent of the [`DigestSigner`] trait.
 #[cfg(feature = "digest")]
-#[allow(async_fn_in_trait)]
 pub trait AsyncDigestSigner<D, S>
 where
     D: Digest,
@@ -224,7 +222,6 @@ where
 
 /// Sign the given message using the provided external randomness source.
 #[cfg(feature = "rand_core")]
-#[allow(async_fn_in_trait)]
 pub trait AsyncRandomizedSigner<S> {
     /// Sign the given message and return a digital signature
     async fn sign_with_rng_async<R: CryptoRng + ?Sized>(&self, rng: &mut R, msg: &[u8]) -> S {