thiserror 2.0, cargo update

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)]
-#[cfg_attr(feature = "std", derive(Error))]
+#[derive(Clone, PartialEq, Eq, Debug, 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})"))]