Remove the no_std feature from the WASM builder (#3640)

* Remove the no_std feature from the WASM builder

* Address review

* More fixing

* Address review again

* Fix missing Cargo.lock

substrate/Cargo.lock

@@ -2548,7 +2548,7 @@ dependencies = [
  "substrate-offchain-primitives 2.0.0",
  "substrate-primitives 2.0.0",
  "substrate-session 2.0.0",
- "substrate-wasm-builder-runner 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "substrate-wasm-builder-runner 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -5475,7 +5475,7 @@ dependencies = [
 
 [[package]]
 name = "substrate-wasm-builder"
-version = "1.0.6"
+version = "1.0.7"
 dependencies = [
  "build-helper 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "cargo_metadata 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -5487,12 +5487,12 @@ dependencies = [
 
 [[package]]
 name = "substrate-wasm-builder-runner"
-version = "1.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
+version = "1.0.3"
 
 [[package]]
 name = "substrate-wasm-builder-runner"
 version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "substrate-wasm-interface"
@@ -6845,7 +6845,7 @@ dependencies = [
 "checksum strum 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e5d1c33039533f051704951680f1adfd468fd37ac46816ded0d9ee068e60f05f"
 "checksum strum_macros 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)" = "47cd23f5c7dee395a00fa20135e2ec0fffcdfa151c56182966d7a3261343432e"
 "checksum substrate-bip39 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3be511be555a3633e71739a79e4ddff6a6aaa6579fa6114182a51d72c3eb93c5"
-"checksum substrate-wasm-builder-runner 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f52ecbff6cc3d6e5c6401828e15937b680f459d6803ce238f01fe615bc40d071"
+"checksum substrate-wasm-builder-runner 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = "af21b27fad38b212c1919f700cb0def33c88cde14d22e0d1b17d4521f4eb8b40"
 "checksum subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d67a5a62ba6e01cb2192ff309324cb4875d0c451d55fe2319433abe7a05a8ee"
 "checksum subtle 2.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "01dca13cf6c3b179864ab3292bd794e757618d35a7766b7c46050c614ba00829"
 "checksum syn 0.15.42 (registry+https://github.com/rust-lang/crates.io-index)" = "eadc09306ca51a40555dd6fc2b415538e9e18bc9f870e47b1a524a79fe2dcf5e"

substrate/core/executor/runtime-test/Cargo.toml

@@ -18,4 +18,3 @@ wasm-builder-runner = { package = "substrate-wasm-builder-runner", version = "1.
 [features]
 default = [ "std" ]
 std = []
-no_std = []

substrate/core/executor/runtime-test/build.rs

@@ -21,7 +21,7 @@ fn main() {
 		"wasm_binary.rs",
 		WasmBuilderSource::CratesOrPath {
 			path: "../../utils/wasm-builder",
-			version: "1.0.6",
+			version: "1.0.7",
 		},
 		// This instructs LLD to export __heap_base as a global variable, which is used by the
 		// external memory allocator.

substrate/core/test-runtime/Cargo.toml

@@ -44,7 +44,6 @@ wasm-builder-runner = { package = "substrate-wasm-builder-runner", version = "1.
 default = [
 	"std",
 ]
-no_std = []
 std = [
 	"log",
 	"serde",

substrate/core/test-runtime/build.rs

@@ -21,7 +21,7 @@ fn main() {
 		"wasm_binary.rs",
 		WasmBuilderSource::CratesOrPath {
 			path: "../utils/wasm-builder",
-			version: "1.0.6",
+			version: "1.0.7",
 		},
 		// Note that we set the stack-size to 1MB explicitly even though it is set
 		// to this value by default. This is because some of our tests (`restoration_of_globals`)

substrate/core/utils/wasm-builder/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "substrate-wasm-builder"
-version = "1.0.6"
+version = "1.0.7"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "Utility for building WASM binaries"
 edition = "2018"

substrate/core/utils/wasm-builder/README.md

@@ -9,7 +9,6 @@ A project that should be compiled as a WASM binary needs to:
 
 1. Add a `build.rs` file.
 2. Add `substrate-wasm-builder-runner` as dependency into `build-dependencies`.
-3. Add a feature called `no-std`.
 
 The `build.rs` file needs to contain the following code:
 
@@ -26,8 +25,6 @@ fn main() {
 }
 ```
 
-The `no-std` feature will be enabled by WASM builder while compiling your project to WASM.
-
 As the final step, you need to add the following to your project:
 
 ```rust

substrate/core/utils/wasm-builder/src/lib.rs

@@ -25,7 +25,6 @@
 //!
 //! 1. Add a `build.rs` file.
 //! 2. Add `substrate-wasm-builder-runner` as dependency into `build-dependencies`.
-//! 3. Add a feature called `no-std`.
 //!
 //! The `build.rs` file needs to contain the following code:
 //!
@@ -42,8 +41,6 @@
 //! }
 //! ```
 //!
-//! The `no-std` feature will be enabled by WASM builder while compiling your project to WASM.
-//!
 //! As the final step, you need to add the following to your project:
 //!
 //! ```ignore

substrate/core/utils/wasm-builder/src/wasm_project.rs

@@ -270,7 +270,7 @@ fn create_project(cargo_manifest: &Path, wasm_workspace: &Path) -> PathBuf {
 				crate-type = ["cdylib"]
 
 				[dependencies]
-				wasm_project = {{ package = "{crate_name}", path = "{crate_path}", default-features = false, features = [ "no_std" ] }}
+				wasm_project = {{ package = "{crate_name}", path = "{crate_path}", default-features = false }}
 			"#,
 			crate_name = crate_name,
 			crate_path = crate_path.display(),

substrate/node-template/runtime/Cargo.toml

@@ -55,4 +55,3 @@ std = [
 	"offchain-primitives/std",
 	"substrate-session/std",
 ]
-no_std = []

substrate/node-template/runtime/build.rs

@@ -19,7 +19,7 @@ use wasm_builder_runner::{build_current_project_with_rustflags, WasmBuilderSourc
 fn main() {
 	build_current_project_with_rustflags(
 		"wasm_binary.rs",
-		WasmBuilderSource::Crates("1.0.6"),
+		WasmBuilderSource::Crates("1.0.7"),
 		// This instructs LLD to export __heap_base as a global variable, which is used by the
 		// external memory allocator.
 		"-Clink-arg=--export=__heap_base",

substrate/node/runtime/Cargo.toml

@@ -53,9 +53,6 @@ wasm-builder-runner = { package = "substrate-wasm-builder-runner", version = "1.
 
 [features]
 default = ["std"]
-no_std = [
-	"contracts/core",
-]
 std = [
 	"authority-discovery-primitives/std",
 	"authority-discovery/std",

substrate/node/runtime/build.rs

@@ -21,7 +21,7 @@ fn main() {
 		"wasm_binary.rs",
 		WasmBuilderSource::CratesOrPath {
 			path: "../../core/utils/wasm-builder",
-			version: "1.0.6",
+			version: "1.0.7",
 		},
 		// This instructs LLD to export __heap_base as a global variable, which is used by the
 		// external memory allocator.

substrate/srml/contracts/Cargo.toml

@@ -28,9 +28,6 @@ hex = "0.3"
 
 [features]
 default = ["std"]
-core = [
-	"wasmi-validation/core",
-]
 std = [
 	"serde",
 	"codec/std",