Fix broken benchmarking (#167)

.github/workflows/check.yml

 name: Check Set-Up & Build
 
-# Controls when the action will run. 
+# Controls when the action will run.
 on:
   # Triggers the workflow on push or pull request events but only for the master branch
   push:
@@ -37,3 +37,8 @@ jobs:
       - name: Check Build
         run: |
           SKIP_WASM_BUILD=1 cargo check --release
+
+      - name: Check Build for Benchmarking
+        run: >
+          pushd node &&
+          cargo check --features=runtime-benchmarks --release

Cargo.lock

 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "Inflector"
 version = "0.11.4"
@@ -3858,6 +3860,7 @@ dependencies = [
  "sp-core",
  "sp-io",
  "sp-runtime",
+ "sp-std",
 ]
 
 [[package]]

pallets/template/Cargo.toml

@@ -17,6 +17,7 @@ codec = { default-features = false, features = ['derive'], package = 'parity-sca
 frame-system = { default-features = false, version = '3.0.0' }
 frame-support = { default-features = false, version = '3.0.0' }
 frame-benchmarking = { default-features = false, optional = true, version = '3.1.0' }
+sp-std = { default-features = false, version = '3.0.0' }
 
 [dev-dependencies]
 serde = { version = "1.0.119" }
@@ -31,8 +32,13 @@ std = [
 	'frame-support/std',
 	'frame-system/std',
 	'frame-benchmarking/std',
+	'sp-std/std',
+]
+runtime-benchmarks = [
+	'frame-benchmarking',
+	'frame-support/runtime-benchmarks',
+	'frame-system/runtime-benchmarks',
 ]
-runtime-benchmarks = ['frame-benchmarking']
 # Note: frame-support `try-runtime` feature is released after v3.
 #   Uncomment the following line when `frame-support` version > `3.0.0`.
 # try-runtime = ['frame-support/try-runtime']

pallets/template/src/benchmarking.rs

@@ -4,6 +4,8 @@ use super::*;
 
 use frame_system::RawOrigin;
 use frame_benchmarking::{benchmarks, whitelisted_caller, impl_benchmark_test_suite};
+use sp_std::{vec, vec::Vec, boxed::Box};
+
 #[allow(unused)]
 use crate::Module as Template;
 

runtime/src/lib.rs

@@ -460,7 +460,7 @@ impl_runtime_apis! {
 		) -> Result<Vec<frame_benchmarking::BenchmarkBatch>, sp_runtime::RuntimeString> {
 			use frame_benchmarking::{Benchmarking, BenchmarkBatch, add_benchmark, TrackedStorageKey};
 
-			use frame_system_benchmarking::Pallet as SystemBench;
+			use frame_system_benchmarking::Module as SystemBench;
 			impl frame_system_benchmarking::Config for Runtime {}
 
 			let whitelist: Vec<TrackedStorageKey> = vec![