style: Migrate to stable-only rustfmt configuration

- Remove nightly-only features from .rustfmt.toml and vendor/ss58-registry/rustfmt.toml
- Removed features: imports_granularity, wrap_comments, comment_width,
  reorder_impl_items, spaces_around_ranges, binop_separator,
  match_arm_blocks, trailing_semicolon, trailing_comma
- Format all 898 affected files with stable rustfmt
- Ensures long-term reliability without nightly toolchain dependency

bizinikiwi/utils/wasm-builder/src/lib.rs

@@ -303,8 +303,8 @@ impl CargoCommand {
 
 	/// Returns whether this version of the toolchain supports nightly features.
 	fn supports_nightly_features(&self) -> bool {
-		self.version.map_or(false, |version| version.is_nightly) ||
-			env::var("RUSTC_BOOTSTRAP").is_ok()
+		self.version.map_or(false, |version| version.is_nightly)
+			|| env::var("RUSTC_BOOTSTRAP").is_ok()
 	}
 
 	/// Check if the supplied cargo command supports our runtime environment.
@@ -433,12 +433,13 @@ impl RuntimeTarget {
 	/// Figures out the target parameter value for rustc.
 	fn rustc_target(self, cargo_command: &CargoCommand) -> String {
 		match self {
-			RuntimeTarget::Wasm =>
+			RuntimeTarget::Wasm => {
 				if cargo_command.is_wasm32v1_none_target_available() {
 					"wasm32v1-none".into()
 				} else {
 					"wasm32-unknown-unknown".into()
-				},
+				}
+			},
 			RuntimeTarget::Riscv => {
 				let path = polkavm_linker::target_json_32_path().expect("riscv not found");
 				path.into_os_string().into_string().unwrap()
@@ -449,12 +450,13 @@ impl RuntimeTarget {
 	/// Figures out the target directory name used by cargo.
 	fn rustc_target_dir(self, cargo_command: &CargoCommand) -> &'static str {
 		match self {
-			RuntimeTarget::Wasm =>
+			RuntimeTarget::Wasm => {
 				if cargo_command.is_wasm32v1_none_target_available() {
 					"wasm32v1-none".into()
 				} else {
 					"wasm32-unknown-unknown".into()
-				},
+				}
+			},
 			RuntimeTarget::Riscv => "riscv32emac-unknown-none-polkavm",
 		}
 	}

bizinikiwi/utils/wasm-builder/src/prerequisites.rs

@@ -267,8 +267,8 @@ fn check_wasm_toolchain_installed(
 		}
 	}
 
-	if cargo_command.supports_wasm32v1_none_target() &&
-		!cargo_command.is_wasm32v1_none_target_installed()
+	if cargo_command.supports_wasm32v1_none_target()
+		&& !cargo_command.is_wasm32v1_none_target_installed()
 	{
 		build_helper::warning!("You are building WASM runtime using `wasm32-unknown-unknown` target, although Rust >= 1.84 supports `wasm32v1-none` target!");
 		build_helper::warning!("You can install it with `rustup target add wasm32v1-none --toolchain {toolchain}` if you're using `rustup`.");

bizinikiwi/utils/wasm-builder/src/wasm_project.rs

@@ -421,10 +421,11 @@ fn get_wasm_workspace_root() -> PathBuf {
 	loop {
 		match out_dir.parent() {
 			Some(parent) if out_dir.ends_with("build") => return parent.to_path_buf(),
-			_ =>
+			_ => {
 				if !out_dir.pop() {
 					break;
-				},
+				}
+			},
 		}
 	}
 
@@ -613,18 +614,18 @@ fn project_enabled_features(
 			// this heuristic anymore. However, for the transition phase between now and namespaced
 			// features already being present in nightly, we need this code to make
 			// runtimes compile with all the possible rustc versions.
-			if v.len() == 1 &&
-				v.get(0).map_or(false, |v| *v == format!("dep:{}", f)) &&
-				std_enabled.as_ref().map(|e| e.iter().any(|ef| ef == *f)).unwrap_or(false)
+			if v.len() == 1
+				&& v.get(0).map_or(false, |v| *v == format!("dep:{}", f))
+				&& std_enabled.as_ref().map(|e| e.iter().any(|ef| ef == *f)).unwrap_or(false)
 			{
 				return false;
 			}
 
 			// We don't want to enable the `std`/`default` feature for the wasm build and
 			// we need to check if the feature is enabled by checking the env variable.
-			*f != "std" &&
-				*f != "default" &&
-				env::var(format!("CARGO_FEATURE_{feature_env}"))
+			*f != "std"
+				&& *f != "default"
+				&& env::var(format!("CARGO_FEATURE_{feature_env}"))
 					.map(|v| v == "1")
 					.unwrap_or_default()
 		})