feat: remove thiserror (#735)

Cargo.toml

@@ -86,9 +86,6 @@ op-alloy-protocol = { version = "0.5.1", default-features = false }
 op-alloy-consensus = { version = "0.5.1", default-features = false }
 op-alloy-rpc-types-engine = { version = "0.5.1", default-features = false }
 
-# `no_std` support
-thiserror = { git = "https://github.com/quartiq/thiserror", branch = "no-std", default-features = false }
-
 # General
 lru = "0.12.4"
 spin = "0.9.8"

crates/common/Cargo.toml

@@ -13,5 +13,5 @@ workspace = true
 
 [dependencies]
 cfg-if.workspace = true
-thiserror.workspace = true
+derive_more = { workspace = true, features = ["full"] }
 linked_list_allocator.workspace = true

crates/common/src/errors.rs

@@ -1,11 +1,11 @@
 //! Errors for the `kona-common` crate.
 
-use thiserror::Error;
-
 /// An error that can occur when reading from or writing to a file descriptor.
-#[derive(Error, Debug, PartialEq, Eq)]
-#[error("IO error (errno: {0})")]
+#[derive(derive_more::Display, Debug, PartialEq, Eq)]
+#[display("IO error (errno: {_0})")]
 pub struct IOError(pub i32);
 
+impl core::error::Error for IOError {}
+
 /// A [Result] type for the [IOError].
 pub type IOResult<T> = Result<T, IOError>;

crates/derive-alloy/Cargo.toml

@@ -42,13 +42,13 @@ lazy_static = { workspace = true, optional = true }
 prometheus = { workspace = true, optional = true, features = ["process"] }
 
 # `test-utils` feature dependencies
-thiserror = { workspace = true, optional = true }
+derive_more = { workspace = true, features = ["full"], optional = true }
 alloy-rpc-client = { workspace = true, optional = true }
 alloy-node-bindings = { workspace = true, optional = true }
 alloy-transport-http = { workspace = true, optional = true, features = ["reqwest"] }
 
 [dev-dependencies]
-thiserror.workspace = true
+derive_more = { workspace = true, features = ["full"] }
 serde_json.workspace = true
 alloy-rpc-client.workspace = true
 alloy-node-bindings.workspace = true
@@ -60,7 +60,7 @@ kona-derive = { workspace = true, features = ["serde", "test-utils"] }
 default = []
 metrics = ["dep:prometheus", "dep:lazy_static"]
 test-utils = [
-  "dep:thiserror",
+  "dep:derive_more",
   "dep:alloy-rpc-client",
   "dep:alloy-node-bindings",
   "dep:alloy-transport-http",

crates/derive-alloy/src/test_utils.rs

@@ -42,19 +42,21 @@ pub struct MockBeaconClient {
 }
 
 /// A mock beacon client error
-#[derive(Debug, thiserror::Error)]
+#[derive(Debug, derive_more::Display)]
 pub enum MockBeaconClientError {
     /// The config spec is not set
-    #[error("config_spec not set")]
+    #[display("config_spec not set")]
     ConfigSpecNotSet,
     /// The beacon genesis is not set
-    #[error("beacon_genesis not set")]
+    #[display("beacon_genesis not set")]
     BeaconGenesisNotSet,
     /// The blob sidecars are not set
-    #[error("blob_sidecars not set")]
+    #[display("blob_sidecars not set")]
     BlobSidecarsNotSet,
 }
 
+impl core::error::Error for MockBeaconClientError {}
+
 #[async_trait]
 impl crate::BeaconClient for MockBeaconClient {
     type Error = MockBeaconClientError;

crates/derive/Cargo.toml

@@ -28,11 +28,11 @@ op-alloy-consensus = { workspace = true, features = ["k256"] }
 # General
 brotli.workspace = true
 tracing.workspace = true
-thiserror.workspace = true
 miniz_oxide.workspace = true
 async-trait.workspace = true
 unsigned-varint.workspace = true
 alloc-no-stdlib.workspace = true
+derive_more = { workspace = true, features = ["full"] }
 
 # `serde` feature dependencies
 serde = { workspace = true, optional = true, features = ["derive"] }