Update serai-abi, and dependencies, to patch-polkadot-sdk

substrate/primitives/src/coin.rs

@@ -41,6 +41,7 @@ impl ExternalCoin {
   feature = "non_canonical_scale_derivations",
   derive(scale::Encode, scale::Decode, scale::MaxEncodedLen)
 )]
+#[cfg_attr(feature = "non_canonical_scale_derivations", allow(clippy::cast_possible_truncation))]
 #[cfg_attr(feature = "serde", derive(sp_core::serde::Serialize, sp_core::serde::Deserialize))]
 #[cfg_attr(feature = "serde", serde(crate = "sp_core::serde"))]
 pub enum Coin {

substrate/primitives/src/instructions/in/batch.rs

@@ -67,6 +67,7 @@ impl BorshDeserialize for Batch {
         let read = self.reader.read(buf)?;
         self.read = self.read.saturating_add(read);
         if self.read > Batch::MAX_SIZE {
+          #[allow(clippy::io_other_error)]
           Err(io::Error::new(io::ErrorKind::Other, "Batch size exceeded maximum"))?;
         }
         Ok(read)

substrate/primitives/src/instructions/out.rs

@@ -10,6 +10,7 @@ use crate::{address::ExternalAddress, balance::ExternalBalance};
   feature = "non_canonical_scale_derivations",
   derive(scale::Encode, scale::Decode, scale::MaxEncodedLen)
 )]
+#[cfg_attr(feature = "non_canonical_scale_derivations", allow(clippy::cast_possible_truncation))]
 pub enum OutInstruction {
   /// Transfer to the specified address.
   Transfer(ExternalAddress),

substrate/primitives/src/lib.rs

@@ -69,6 +69,8 @@ impl From<u64> for BlockNumber {
 #[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, Zeroize, BorshSerialize, BorshDeserialize)]
 #[rustfmt::skip]
 #[derive(scale::Encode, scale::Decode)] // This is safe as scale and borsh share an encoding here
+#[cfg_attr(feature = "serde", derive(sp_core::serde::Serialize, sp_core::serde::Deserialize))]
+#[cfg_attr(feature = "serde", serde(crate = "sp_core::serde"))]
 pub struct BlockHash(pub [u8; 32]);
 impl From<[u8; 32]> for BlockHash {
   fn from(hash: [u8; 32]) -> BlockHash {

substrate/primitives/src/merkle.rs

@@ -145,19 +145,6 @@ fn unbalanced_merkle_tree() {
     let with_new = UnbalancedMerkleTree::new(tag, list_of_hashes.clone());
     // Check `is_empty` works
     assert_eq!(with_new.is_empty(), i == 0);
-    // The reference method, easy to audit, should have identical behavior to the optimized method
-    assert_eq!(
-      with_new,
-      UnbalancedMerkleTree::from_scale_encoded_list_of_hashes(tag, list_of_hashes.encode())
-    );
-    // The encoding of a slice should work the same as the encoding of a list
-    assert_eq!(
-      with_new,
-      UnbalancedMerkleTree::from_scale_encoded_list_of_hashes(
-        tag,
-        list_of_hashes.as_slice().encode()
-      )
-    );
     // Check the incremental method produces an identical result
     assert_eq!(incremental.clone().calculate(tag), with_new, "{i}");
 

substrate/primitives/src/network_id.rs

@@ -71,6 +71,7 @@ impl ExternalNetworkId {
   feature = "non_canonical_scale_derivations",
   derive(scale::Encode, scale::Decode, scale::MaxEncodedLen)
 )]
+#[cfg_attr(feature = "non_canonical_scale_derivations", allow(clippy::cast_possible_truncation))]
 pub enum NetworkId {
   /// The Serai network.
   Serai,

substrate/primitives/src/sp_borsh.rs

@@ -45,6 +45,7 @@ pub fn borsh_deserialize_bounded_vec<R: Read, T: BorshDeserialize, const B: u32>
   reader.read_exact(&mut length[.. bytes_for_length])?;
   let length = u32::from_le_bytes(length);
   if length > B {
+    #[allow(clippy::io_other_error)]
     Err(Error::new(ErrorKind::Other, "bound exceeded"))?;
   }
 

substrate/primitives/src/validator_sets/mod.rs

@@ -65,8 +65,24 @@ impl TryFrom<ValidatorSet> for ExternalValidatorSet {
 
 impl ExternalValidatorSet {
   /// The MuSig context for this validator set.
-  pub fn musig_context(&self) -> Vec<u8> {
-    borsh::to_vec(&(b"ValidatorSets-musig_key".as_ref(), self)).unwrap()
+  pub fn musig_context(&self) -> [u8; 32] {
+    let mut res = [0; 32];
+
+    const DST: &[u8] = b"ValidatorSets-musig_key";
+    res[0] = u8::try_from(DST.len()).unwrap();
+    #[allow(clippy::range_plus_one)]
+    res[1 .. (1 + DST.len())].copy_from_slice(DST);
+
+    // Check we have room to encode into `res`, using the approximate `size_of` for the max size of
+    // the serialization
+    const BYTES_FOR_SET: usize = 32 - (1 + DST.len());
+    const _ASSERT_MORE_BYTES_THAN_SIZE: [();
+      BYTES_FOR_SET - core::mem::size_of::<ExternalValidatorSet>()] = [(); _];
+
+    let encoded = borsh::to_vec(&self).unwrap();
+    res[(1 + DST.len()) .. (1 + DST.len() + encoded.len())].copy_from_slice(&encoded);
+
+    res
   }
 
   /// The MuSig public key for a validator set.
@@ -80,7 +96,7 @@ impl ExternalValidatorSet {
           .expect("invalid participant"),
       );
     }
-    Public(dkg::musig::musig_key::<Ristretto>(&self.musig_context(), &keys).unwrap().to_bytes())
+    Public(dkg::musig_key::<Ristretto>(self.musig_context(), &keys).unwrap().to_bytes())
   }
 
   /// The message for the `set_keys` signature.

substrate/primitives/src/validator_sets/slashes.rs

@@ -24,6 +24,7 @@ fn downtime_per_slash_point(validators: NonZero<u16>) -> Duration {
   feature = "non_canonical_scale_derivations",
   derive(scale::Encode, scale::Decode, scale::MaxEncodedLen)
 )]
+#[cfg_attr(feature = "non_canonical_scale_derivations", allow(clippy::cast_possible_truncation))]
 pub enum Slash {
   /// The slash points accumulated by this validator.
   ///