thiserror 2.0, cargo update

common/std-shims/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 
 [dependencies]
 spin = { version = "0.9", default-features = false, features = ["use_ticket_mutex", "lazy"] }
-hashbrown = { version = "0.14", default-features = false, features = ["ahash", "inline-more"] }
+hashbrown = { version = "0.15", default-features = false, features = ["default-hasher", "inline-more"] }
 
 [features]
 std = []

coordinator/Cargo.toml

@@ -8,6 +8,7 @@ authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = []
 edition = "2021"
 publish = false
+rust-version = "1.81"
 
 [package.metadata.docs.rs]
 all-features = true

coordinator/tributary/Cargo.toml

@@ -6,6 +6,7 @@ license = "AGPL-3.0-only"
 repository = "https://github.com/serai-dex/serai/tree/develop/coordinator/tributary"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 edition = "2021"
+rust-version = "1.81"
 
 [package.metadata.docs.rs]
 all-features = true
@@ -16,7 +17,7 @@ workspace = true
 
 [dependencies]
 async-trait = { version = "0.1", default-features = false }
-thiserror = { version = "1", default-features = false }
+thiserror = { version = "2", default-features = false, features = ["std"] }
 
 subtle = { version = "^2", default-features = false, features = ["std"] }
 zeroize = { version = "^1.5", default-features = false, features = ["std"] }

coordinator/tributary/tendermint/Cargo.toml

@@ -6,6 +6,7 @@ license = "MIT"
 repository = "https://github.com/serai-dex/serai/tree/develop/coordinator/tendermint"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 edition = "2021"
+rust-version = "1.81"
 
 [package.metadata.docs.rs]
 all-features = true
@@ -16,7 +17,7 @@ workspace = true
 
 [dependencies]
 async-trait = { version = "0.1", default-features = false }
-thiserror = { version = "1", default-features = false }
+thiserror = { version = "2", default-features = false, features = ["std"] }
 
 hex = { version = "0.4", default-features = false, features = ["std"] }
 log = { version = "0.4", default-features = false, features = ["std"] }

crypto/dkg/Cargo.toml

@@ -7,7 +7,7 @@ repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dkg"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 keywords = ["dkg", "multisig", "threshold", "ff", "group"]
 edition = "2021"
-rust-version = "1.80"
+rust-version = "1.81"
 
 [package.metadata.docs.rs]
 all-features = true
@@ -17,7 +17,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 workspace = true
 
 [dependencies]
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 rand_core = { version = "0.6", default-features = false }
 
@@ -58,7 +58,7 @@ pasta_curves = "0.5"
 
 [features]
 std = [
-  "thiserror",
+  "thiserror/std",
 
   "rand_core/std",
 

crypto/dkg/src/lib.rs

@@ -4,7 +4,6 @@
 
 use core::fmt::{self, Debug};
 
-#[cfg(feature = "std")]
 use thiserror::Error;
 
 use zeroize::Zeroize;
@@ -67,8 +66,7 @@ impl fmt::Display for Participant {
 }
 
 /// Various errors possible during key generation.
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug, Error)]
-#[cfg_attr(feature = "std", derive(Error))]
 pub enum DkgError<B: Clone + PartialEq + Eq + Debug> {
   /// A parameter was zero.
   #[cfg_attr(feature = "std", error("a parameter was 0 (threshold {0}, participants {1})"))]

crypto/dleq/Cargo.toml

@@ -6,7 +6,7 @@ license = "MIT"
 repository = "https://github.com/serai-dex/serai/tree/develop/crypto/dleq"
 authors = ["Luke Parker <lukeparker5132@gmail.com>"]
 edition = "2021"
-rust-version = "1.79"
+rust-version = "1.81"
 
 [package.metadata.docs.rs]
 all-features = true
@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 rustversion = "1"
 
-thiserror = { version = "1", optional = true }
+thiserror = { version = "2", default-features = false, optional = true }
 rand_core = { version = "0.6", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
@@ -44,7 +44,7 @@ dalek-ff-group = { path = "../dalek-ff-group" }
 transcript = { package = "flexible-transcript", path = "../transcript", features = ["recommended"] }
 
 [features]
-std = ["rand_core/std", "zeroize/std", "digest/std", "transcript/std", "ff/std", "multiexp?/std"]
+std = ["thiserror?/std", "rand_core/std", "zeroize/std", "digest/std", "transcript/std", "ff/std", "multiexp?/std"]
 serialize = ["std"]
 
 # Needed for cross-group DLEqs

crypto/dleq/src/cross_group/mod.rs

@@ -92,7 +92,7 @@ impl<G: PrimeGroup> Generators<G> {
 }
 
 /// Error for cross-group DLEq proofs.
-#[derive(Error, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, Error)]
 pub enum DLEqError {
   /// Invalid proof length.
   #[error("invalid proof length")]

crypto/evrf/embedwards25519/Cargo.toml

@@ -22,7 +22,7 @@ rand_core = { version = "0.6", default-features = false, features = ["std"] }
 zeroize = { version = "^1.5", default-features = false, features = ["std", "zeroize_derive"] }
 subtle = { version = "^2.4", default-features = false, features = ["std"] }
 
-generic-array = { version = "0.14", default-features = false }
+generic-array = { version = "1", default-features = false }
 crypto-bigint = { version = "0.5", default-features = false, features = ["zeroize"] }
 
 dalek-ff-group = { path = "../../dalek-ff-group", version = "0.4", default-features = false }

crypto/frost/Cargo.toml

@@ -17,7 +17,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 workspace = true
 
 [dependencies]
-thiserror = "1"
+thiserror = { version = "2", default-features = false, features = ["std"] }
 
 rand_core = { version = "0.6", default-features = false, features = ["std"] }
 rand_chacha = { version = "0.3", default-features = false, features = ["std"] }

networks/bitcoin/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { version = "0.1.1", path = "../../common/std-shims", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false }
 rand_core = { version = "0.6", default-features = false }
@@ -44,7 +44,7 @@ tokio = { version = "1", features = ["macros"] }
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
   "rand_core/std",

networks/monero/ringct/bulletproofs/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 rand_core = { version = "0.6", default-features = false }
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
@@ -42,7 +42,7 @@ hex-literal = "0.4"
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "rand_core/std",
   "zeroize/std",

networks/monero/ringct/bulletproofs/src/lib.rs

@@ -45,14 +45,13 @@ use crate::plus::{
 mod tests;
 
 /// An error from proving/verifying Bulletproofs(+).
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum BulletproofError {
   /// Proving/verifying a Bulletproof(+) range proof with no commitments.
-  #[cfg_attr(feature = "std", error("no commitments to prove the range for"))]
+  #[error("no commitments to prove the range for")]
   NoCommitments,
   /// Proving/verifying a Bulletproof(+) range proof with more commitments than supported.
-  #[cfg_attr(feature = "std", error("too many commitments to prove the range for"))]
+  #[error("too many commitments to prove the range for")]
   TooManyCommitments,
 }
 

networks/monero/ringct/clsag/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 rand_core = { version = "0.6", default-features = false }
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
@@ -46,7 +46,7 @@ frost = { package = "modular-frost", path = "../../../../crypto/frost", default-
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "rand_core/std",
   "zeroize/std",

networks/monero/ringct/clsag/src/lib.rs

@@ -36,29 +36,28 @@ pub use multisig::{ClsagMultisigMaskSender, ClsagAddendum, ClsagMultisig};
 mod tests;
 
 /// Errors when working with CLSAGs.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum ClsagError {
   /// The ring was invalid (such as being too small or too large).
-  #[cfg_attr(feature = "std", error("invalid ring"))]
+  #[error("invalid ring")]
   InvalidRing,
   /// The discrete logarithm of the key, scaling G, wasn't equivalent to the signing ring member.
-  #[cfg_attr(feature = "std", error("invalid commitment"))]
+  #[error("invalid commitment")]
   InvalidKey,
   /// The commitment opening provided did not match the ring member's.
-  #[cfg_attr(feature = "std", error("invalid commitment"))]
+  #[error("invalid commitment")]
   InvalidCommitment,
   /// The key image was invalid (such as being identity or torsioned)
-  #[cfg_attr(feature = "std", error("invalid key image"))]
+  #[error("invalid key image")]
   InvalidImage,
   /// The `D` component was invalid.
-  #[cfg_attr(feature = "std", error("invalid D"))]
+  #[error("invalid D")]
   InvalidD,
   /// The `s` vector was invalid.
-  #[cfg_attr(feature = "std", error("invalid s"))]
+  #[error("invalid s")]
   InvalidS,
   /// The `c1` variable was invalid.
-  #[cfg_attr(feature = "std", error("invalid c1"))]
+  #[error("invalid c1")]
   InvalidC1,
 }
 

networks/monero/ringct/mlsag/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
 
@@ -34,7 +34,7 @@ monero-primitives = { path = "../../primitives", version = "0.1", default-featur
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
 

networks/monero/ringct/mlsag/src/lib.rs

@@ -19,23 +19,22 @@ use monero_generators::{H, hash_to_point};
 use monero_primitives::keccak256_to_scalar;
 
 /// Errors when working with MLSAGs.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum MlsagError {
   /// Invalid ring (such as too small or too large).
-  #[cfg_attr(feature = "std", error("invalid ring"))]
+  #[error("invalid ring")]
   InvalidRing,
   /// Invalid amount of key images.
-  #[cfg_attr(feature = "std", error("invalid amount of key images"))]
+  #[error("invalid amount of key images")]
   InvalidAmountOfKeyImages,
   /// Invalid ss matrix.
-  #[cfg_attr(feature = "std", error("invalid ss"))]
+  #[error("invalid ss")]
   InvalidSs,
   /// Invalid key image.
-  #[cfg_attr(feature = "std", error("invalid key image"))]
+  #[error("invalid key image")]
   InvalidKeyImage,
   /// Invalid ci vector.
-  #[cfg_attr(feature = "std", error("invalid ci"))]
+  #[error("invalid ci")]
   InvalidCi,
 }
 

networks/monero/rpc/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
 hex = { version = "0.4", default-features = false, features = ["alloc"] }
@@ -34,7 +34,7 @@ monero-address = { path = "../wallet/address", default-features = false }
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
   "hex/std",

networks/monero/rpc/src/lib.rs

@@ -42,34 +42,33 @@ const GRACE_BLOCKS_FOR_FEE_ESTIMATE: u64 = 10;
 const TXS_PER_REQUEST: usize = 100;
 
 /// An error from the RPC.
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum RpcError {
   /// An internal error.
-  #[cfg_attr(feature = "std", error("internal error ({0})"))]
+  #[error("internal error ({0})")]
   InternalError(String),
   /// A connection error with the node.
-  #[cfg_attr(feature = "std", error("connection error ({0})"))]
+  #[error("connection error ({0})")]
   ConnectionError(String),
   /// The node is invalid per the expected protocol.
-  #[cfg_attr(feature = "std", error("invalid node ({0})"))]
+  #[error("invalid node ({0})")]
   InvalidNode(String),
   /// Requested transactions weren't found.
-  #[cfg_attr(feature = "std", error("transactions not found"))]
+  #[error("transactions not found")]
   TransactionsNotFound(Vec<[u8; 32]>),
   /// The transaction was pruned.
   ///
   /// Pruned transactions are not supported at this time.
-  #[cfg_attr(feature = "std", error("pruned transaction"))]
+  #[error("pruned transaction")]
   PrunedTransaction,
   /// A transaction (sent or received) was invalid.
-  #[cfg_attr(feature = "std", error("invalid transaction ({0:?})"))]
+  #[error("invalid transaction ({0:?})")]
   InvalidTransaction([u8; 32]),
   /// The returned fee was unusable.
-  #[cfg_attr(feature = "std", error("unexpected fee response"))]
+  #[error("unexpected fee response")]
   InvalidFee,
   /// The priority intended for use wasn't usable.
-  #[cfg_attr(feature = "std", error("invalid priority"))]
+  #[error("invalid priority")]
   InvalidPriority,
 }
 

networks/monero/wallet/Cargo.toml

@@ -21,7 +21,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
 
@@ -61,7 +61,7 @@ monero-simple-request-rpc = { path = "../rpc/simple-request", default-features =
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
 

networks/monero/wallet/address/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
 
@@ -40,7 +40,7 @@ serde_json = { version = "1", default-features = false, features = ["alloc"] }
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
 

networks/monero/wallet/address/src/lib.rs

@@ -199,29 +199,25 @@ pub enum Network {
 }
 
 /// Errors when decoding an address.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum AddressError {
   /// The address had an invalid (network, type) byte.
-  #[cfg_attr(feature = "std", error("invalid byte for the address's network/type ({0})"))]
+  #[error("invalid byte for the address's network/type ({0})")]
   InvalidTypeByte(u8),
   /// The address wasn't a valid Base58Check (as defined by Monero) string.
-  #[cfg_attr(feature = "std", error("invalid address encoding"))]
+  #[error("invalid address encoding")]
   InvalidEncoding,
   /// The data encoded wasn't the proper length.
-  #[cfg_attr(feature = "std", error("invalid length"))]
+  #[error("invalid length")]
   InvalidLength,
   /// The address had an invalid key.
-  #[cfg_attr(feature = "std", error("invalid key"))]
+  #[error("invalid key")]
   InvalidKey,
   /// The address was featured with unrecognized features.
-  #[cfg_attr(feature = "std", error("unknown features"))]
+  #[error("unknown features")]
   UnknownFeatures(u64),
   /// The network was for a different network than expected.
-  #[cfg_attr(
+  #[error("different network ({actual:?}) than expected ({expected:?})")]
-    feature = "std",
-    error("different network ({actual:?}) than expected ({expected:?})")
-  )]
   DifferentNetwork {
     /// The Network expected.
     expected: Network,

networks/monero/wallet/polyseed/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 subtle = { version = "^2.4", default-features = false }
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
@@ -34,7 +34,7 @@ hex = { version = "0.4", default-features = false, features = ["std"] }
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "subtle/std",
   "zeroize/std",

networks/monero/wallet/polyseed/src/lib.rs

@@ -106,20 +106,19 @@ const POLYSEED_KEYGEN_ITERATIONS: u32 = 10000;
 const COIN: u16 = 0;
 
 /// An error when working with a Polyseed.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum PolyseedError {
   /// The seed was invalid.
-  #[cfg_attr(feature = "std", error("invalid seed"))]
+  #[error("invalid seed")]
   InvalidSeed,
   /// The entropy was invalid.
-  #[cfg_attr(feature = "std", error("invalid entropy"))]
+  #[error("invalid entropy")]
   InvalidEntropy,
   /// The checksum did not match the data.
-  #[cfg_attr(feature = "std", error("invalid checksum"))]
+  #[error("invalid checksum")]
   InvalidChecksum,
   /// Unsupported feature bits were set.
-  #[cfg_attr(feature = "std", error("unsupported features"))]
+  #[error("unsupported features")]
   UnsupportedFeatures,
 }
 

networks/monero/wallet/seed/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
 rand_core = { version = "0.6", default-features = false }
@@ -33,7 +33,7 @@ monero-primitives = { path = "../../primitives", default-features = false, featu
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
   "rand_core/std",

networks/monero/wallet/seed/src/lib.rs

@@ -26,19 +26,18 @@ const SEED_LENGTH: usize = 24;
 const SEED_LENGTH_WITH_CHECKSUM: usize = 25;
 
 /// An error when working with a seed.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum SeedError {
-  #[cfg_attr(feature = "std", error("invalid seed"))]
+  #[error("invalid seed")]
   /// The seed was invalid.
   InvalidSeed,
   /// The checksum did not match the data.
-  #[cfg_attr(feature = "std", error("invalid checksum"))]
+  #[error("invalid checksum")]
   InvalidChecksum,
   /// The deprecated English language option was used with a checksum.
   ///
   /// The deprecated English language option did not include a checksum.
-  #[cfg_attr(feature = "std", error("deprecated English language option included a checksum"))]
+  #[error("deprecated English language option included a checksum")]
   DeprecatedEnglishWithChecksum,
 }
 

networks/monero/wallet/src/scan.rs

@@ -67,14 +67,13 @@ impl Timelocked {
 }
 
 /// Errors when scanning a block.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum ScanError {
   /// The block was for an unsupported protocol version.
-  #[cfg_attr(feature = "std", error("unsupported protocol version ({0})"))]
+  #[error("unsupported protocol version ({0})")]
   UnsupportedProtocol(u8),
   /// The ScannableBlock was invalid.
-  #[cfg_attr(feature = "std", error("invalid scannable block ({0})"))]
+  #[error("invalid scannable block ({0})")]
   InvalidScannableBlock(&'static str),
 }
 

networks/monero/wallet/src/send/mod.rs

@@ -140,48 +140,44 @@ impl InternalPayment {
 }
 
 /// An error while sending Monero.
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum SendError {
   /// The RingCT type to produce proofs for this transaction with weren't supported.
-  #[cfg_attr(feature = "std", error("this library doesn't yet support that RctType"))]
+  #[error("this library doesn't yet support that RctType")]
   UnsupportedRctType,
   /// The transaction had no inputs specified.
-  #[cfg_attr(feature = "std", error("no inputs"))]
+  #[error("no inputs")]
   NoInputs,
   /// The decoy quantity was invalid for the specified RingCT type.
-  #[cfg_attr(feature = "std", error("invalid number of decoys"))]
+  #[error("invalid number of decoys")]
   InvalidDecoyQuantity,
   /// The transaction had no outputs specified.
-  #[cfg_attr(feature = "std", error("no outputs"))]
+  #[error("no outputs")]
   NoOutputs,
   /// The transaction had too many outputs specified.
-  #[cfg_attr(feature = "std", error("too many outputs"))]
+  #[error("too many outputs")]
   TooManyOutputs,
   /// The transaction did not have a change output, and did not have two outputs.
   ///
   /// Monero requires all transactions have at least two outputs, assuming one payment and one
   /// change (or at least one dummy and one change). Accordingly, specifying no change and only
   /// one payment prevents creating a valid transaction
-  #[cfg_attr(feature = "std", error("only one output and no change address"))]
+  #[error("only one output and no change address")]
   NoChange,
   /// Multiple addresses had payment IDs specified.
-  ///
+  ///o
   /// Only one payment ID is allowed per transaction.
-  #[cfg_attr(feature = "std", error("multiple addresses with payment IDs"))]
+  #[error("multiple addresses with payment IDs")]
   MultiplePaymentIds,
   /// Too much arbitrary data was specified.
-  #[cfg_attr(feature = "std", error("too much data"))]
+  #[error("too much data")]
   TooMuchArbitraryData,
   /// The created transaction was too large.
-  #[cfg_attr(feature = "std", error("too large of a transaction"))]
+  #[error("too large of a transaction")]
   TooLargeTransaction,
   /// This transaction could not pay for itself.
-  #[cfg_attr(
+  #[error(
-    feature = "std",
+    "not enough funds (inputs {inputs}, outputs {outputs}, necessary_fee {necessary_fee:?})"
-    error(
-      "not enough funds (inputs {inputs}, outputs {outputs}, necessary_fee {necessary_fee:?})"
-    )
   )]
   NotEnoughFunds {
     /// The amount of funds the inputs contributed.
@@ -195,20 +191,17 @@ pub enum SendError {
     necessary_fee: Option<u64>,
   },
   /// This transaction is being signed with the wrong private key.
-  #[cfg_attr(feature = "std", error("wrong spend private key"))]
+  #[error("wrong spend private key")]
   WrongPrivateKey,
   /// This transaction was read from a bytestream which was malicious.
-  #[cfg_attr(
+  #[error("this SignableTransaction was created by deserializing a malicious serialization")]
-    feature = "std",
-    error("this SignableTransaction was created by deserializing a malicious serialization")
-  )]
   MaliciousSerialization,
   /// There was an error when working with the CLSAGs.
-  #[cfg_attr(feature = "std", error("clsag error ({0})"))]
+  #[error("clsag error ({0})")]
   ClsagError(ClsagError),
   /// There was an error when working with FROST.
   #[cfg(feature = "multisig")]
-  #[cfg_attr(feature = "std", error("frost error {0}"))]
+  #[error("frost error {0}")]
   FrostError(FrostError),
 }
 

networks/monero/wallet/src/view_pair.rs

@@ -10,8 +10,7 @@ use crate::{
 };
 
 /// An error while working with a ViewPair.
-#[derive(Clone, PartialEq, Eq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum ViewPairError {
   /// The spend key was torsioned.
   ///
@@ -20,7 +19,7 @@ pub enum ViewPairError {
   // CLSAG seems to support it if the challenge does a torsion clear, FCMP++ should ship with a
   // torsion clear, yet it's not worth it to modify CLSAG sign to generate challenges until the
   // torsion clears and ensure spendability (nor can we reasonably guarantee that in the future)
-  #[cfg_attr(feature = "std", error("torsioned spend key"))]
+  #[error("torsioned spend key")]
   TorsionedSpendKey,
 }
 

networks/monero/wallet/util/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 [dependencies]
 std-shims = { path = "../../../../common/std-shims", version = "^0.1.1", default-features = false }
 
-thiserror = { version = "1", default-features = false, optional = true }
+thiserror = { version = "2", default-features = false }
 
 zeroize = { version = "^1.5", default-features = false, features = ["zeroize_derive"] }
 rand_core = { version = "0.6", default-features = false }
@@ -36,7 +36,7 @@ curve25519-dalek = { version = "4", default-features = false, features = ["alloc
 std = [
   "std-shims/std",
 
-  "thiserror",
+  "thiserror/std",
 
   "zeroize/std",
   "rand_core/std",

networks/monero/wallet/util/src/seed.rs

@@ -11,20 +11,19 @@ use original::{SeedError as OriginalSeedError, Seed as OriginalSeed};
 use polyseed::{PolyseedError, Polyseed};
 
 /// An error from working with seeds.
-#[derive(Clone, Copy, PartialEq, Eq, Debug)]
+#[derive(Clone, Copy, PartialEq, Eq, Debug, thiserror::Error)]
-#[cfg_attr(feature = "std", derive(thiserror::Error))]
 pub enum SeedError {
   /// The seed was invalid.
-  #[cfg_attr(feature = "std", error("invalid seed"))]
+  #[error("invalid seed")]
   InvalidSeed,
   /// The entropy was invalid.
-  #[cfg_attr(feature = "std", error("invalid entropy"))]
+  #[error("invalid entropy")]
   InvalidEntropy,
   /// The checksum did not match the data.
-  #[cfg_attr(feature = "std", error("invalid checksum"))]
+  #[error("invalid checksum")]
   InvalidChecksum,
   /// Unsupported features were enabled.
-  #[cfg_attr(feature = "std", error("unsupported features"))]
+  #[error("unsupported features")]
   UnsupportedFeatures,
 }
 

substrate/client/Cargo.toml

@@ -18,7 +18,7 @@ workspace = true
 
 [dependencies]
 zeroize = "^1.5"
-thiserror = { version = "1", optional = true }
+thiserror = { version = "2", default-features = false, optional = true }
 
 bitvec = { version = "1", default-features = false, features = ["alloc", "serde"] }
 
@@ -60,7 +60,7 @@ dockertest = "0.5"
 serai-docker-tests = { path = "../../tests/docker" }
 
 [features]
-serai = ["thiserror", "serde", "serde_json", "serai-abi/serde", "multiaddr", "sp-core", "sp-runtime", "frame-system", "simple-request"]
+serai = ["thiserror/std", "serde", "serde_json", "serai-abi/serde", "multiaddr", "sp-core", "sp-runtime", "frame-system", "simple-request"]
 borsh = ["serai-abi/borsh"]
 
 networks = []

substrate/client/src/serai/mod.rs

@@ -55,7 +55,7 @@ impl Block {
   }
 }
 
-#[derive(Error, Debug)]
+#[derive(Debug, Error)]
 pub enum SeraiError {
   #[error("failed to communicate with serai")]
   ConnectionError,

substrate/runtime/Cargo.toml

@@ -19,7 +19,7 @@ ignored = ["scale", "scale-info"]
 workspace = true
 
 [dependencies]
-hashbrown = { version = "0.14", default-features = false, features = ["ahash", "inline-more"] }
+hashbrown = { version = "0.15", default-features = false, features = ["default-hasher", "inline-more"] }
 
 scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive"] }
 scale-info = { version = "2", default-features = false, features = ["derive"] }