Implement core::error::Error for all error types

Cargo.toml

@@ -22,7 +22,7 @@ wat = "1.0.83"
 name = "wasm-interpreter"
 version = "0.2.0"
 edition = "2021"
-rust-version = "1.76.0" # Keep this in sync with the requirements!
+rust-version = "1.81.0" # Keep this in sync with the requirements!
 description = """
 A WASM interpreter tailored for safety use-cases, such as automotive and avionics applications
 """

crates/benchmark/Cargo.toml

@@ -2,7 +2,7 @@
 name = "benchmark"
 version = "0.1.0"
 edition = "2021"
-rust-version = "1.80.0"
+rust-version = "1.81.0"
 
 [dev-dependencies]
 criterion = { version = "0.5.1", default-features = false, features = [

crates/compare-testsuite-rs/Cargo.toml

@@ -2,7 +2,7 @@
 name = "compare-testsuite-rs"
 version = "0.1.0"
 edition = "2021"
-rust-version = "1.74.1"
+rust-version = "1.81.0"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 

crates/log_wrapper/Cargo.toml

@@ -2,7 +2,7 @@
 name = "log_wrapper"
 version = "0.1.0"
 edition = "2021"
-rust-version = "1.76.0" # Keep this in sync with the requirements!
+rust-version = "1.81.0" # Keep this in sync with the requirements!
 description = """
 A WASM interpreter tailored for safety use-cases, such as automotive and avionics applications
 """

requirements/requirements.sdoc

@@ -172,7 +172,7 @@ RELATIONS:
 UID: REQ-17
 TITLE: Minimum Supported Rust Version (MSRV)
 STATEMENT: >>>
-The interpreter shall compile on Rust ``1.76.0`` and later versions
+The interpreter shall compile on Rust ``1.81.0`` and later versions
 <<<
 RATIONALE: >>>
 An MSRV should be clearly stated to specify which toolchain is acceptable.

src/core/error.rs

@@ -155,6 +155,8 @@ pub enum ValidationError {
     InvalidElementMode(u32),
 }
 
+impl core::error::Error for ValidationError {}
+
 impl Display for ValidationError {
     fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
         match self {

src/execution/error.rs

@@ -52,7 +52,7 @@ pub enum RuntimeError {
 impl Display for RuntimeError {
     fn fmt(&self, f: &mut Formatter<'_>) -> core::fmt::Result {
         match self {
-            RuntimeError::Trap(trap_error) => write!(f, "{trap_error}"),
+            RuntimeError::Trap(trap_error) => write!(f, "Execution trapped: {trap_error}"),
             RuntimeError::FunctionNotFound => f.write_str("Function not found"),
             RuntimeError::ModuleNotFound => f.write_str("No such module exists"),
             RuntimeError::ResumableNotFound => f.write_str("No such resumable exists"),
@@ -109,6 +109,8 @@ impl Display for RuntimeError {
     }
 }
 
+impl core::error::Error for RuntimeError {}
+
 #[derive(Debug, PartialEq, Eq, Clone)]
 pub enum TrapError {
     DivideBy0,
@@ -153,13 +155,13 @@ impl Display for TrapError {
             TrapError::TableAccessOutOfBounds => {
                 f.write_str("Indirect call: table index out of bounds")
             }
-            TrapError::ReachedUnreachable => {
-                f.write_str("an unreachable statement was reached, triggered a trap")
-            }
+            TrapError::ReachedUnreachable => f.write_str("An unreachable statement was reached"),
         }
     }
 }
 
+impl core::error::Error for TrapError {}
+
 impl From<TrapError> for RuntimeError {
     fn from(value: TrapError) -> Self {
         Self::Trap(value)