Switch to stable rust and make rust debug build usable

.github/workflows/build.yml

@@ -300,7 +300,6 @@ jobs:
           echo "$MB_VERSION" | grep $GIT_COMMIT
       - name: Unit tests
         run: |
-          cargo install cargo-expand
           cargo test --release --all
 
       # We determine whether there are unmodified Cargo.lock files by:

Cargo.toml

@@ -349,6 +349,66 @@ evm-core = { git = "https://github.com/rust-blockchain/evm", rev = "842e03d068dd
 evm-gasometer = { git = "https://github.com/rust-blockchain/evm", rev = "842e03d068ddb6a3195a2dedc4a9b63caadb3355" }
 evm-runtime = { git = "https://github.com/rust-blockchain/evm", rev = "842e03d068ddb6a3195a2dedc4a9b63caadb3355" }
 
+# The list of dependencies below (which can be both direct and indirect dependencies) are crates
+# that are suspected to be CPU-intensive, and that are unlikely to require debugging (as some of
+# their debug info might be missing) or to require to be frequently recompiled. We compile these
+# dependencies with `opt-level=3` even in "dev" mode in order to make "dev" mode more usable.
+# The majority of these crates are cryptographic libraries.
+#
+# Note that this does **not** affect crates that depend on Moonbeam. In other words, if you add
+# a dependency on Moonbeam, you have to copy-paste this list in your own `Cargo.toml` (assuming
+# that you want the same list). This list is only relevant when running `cargo build` from within
+# the Moonbeam workspace.
+#
+# If you see an error mentioning "profile package spec ... did not match any packages", it
+# probably concerns this list.
+#
+# This list is ordered alphabetically.
+[profile.dev.package]
+blake2 = { opt-level = 3 }
+blake2b_simd = { opt-level = 3 }
+chacha20poly1305 = { opt-level = 3 }
+cranelift-codegen = { opt-level = 3 }
+cranelift-wasm = { opt-level = 3 }
+crc32fast = { opt-level = 3 }
+crossbeam-deque = { opt-level = 3 }
+crypto-mac = { opt-level = 3 }
+curve25519-dalek = { opt-level = 3 }
+ed25519-zebra = { opt-level = 3 }
+flate2 = { opt-level = 3 }
+futures-channel = { opt-level = 3 }
+hash-db = { opt-level = 3 }
+hashbrown = { opt-level = 3 }
+hmac = { opt-level = 3 }
+httparse = { opt-level = 3 }
+integer-sqrt = { opt-level = 3 }
+k256 = { opt-level = 3 }
+keccak = { opt-level = 3 }
+libm = { opt-level = 3 }
+librocksdb-sys = { opt-level = 3 }
+libsecp256k1 = { opt-level = 3 }
+libz-sys = { opt-level = 3 }
+mio = { opt-level = 3 }
+nalgebra = { opt-level = 3 }
+num-bigint = { opt-level = 3 }
+parking_lot = { opt-level = 3 }
+parking_lot_core = { opt-level = 3 }
+percent-encoding = { opt-level = 3 }
+primitive-types = { opt-level = 3 }
+ring = { opt-level = 3 }
+rustls = { opt-level = 3 }
+secp256k1 = { opt-level = 3 }
+sha2 = { opt-level = 3 }
+sha3 = { opt-level = 3 }
+smallvec = { opt-level = 3 }
+snow = { opt-level = 3 }
+twox-hash = { opt-level = 3 }
+uint = { opt-level = 3 }
+wasmi = { opt-level = 3 }
+x25519-dalek = { opt-level = 3 }
+yamux = { opt-level = 3 }
+zeroize = { opt-level = 3 }
+
 # make sure dev builds with backtrace do
 # not slow us down
 [profile.dev.package.backtrace]

pallets/moonbeam-orbiters/src/lib.rs

@@ -27,7 +27,6 @@
 //! currently selected orbiter.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(step_trait)]
 
 pub mod types;
 pub mod weights;
@@ -108,8 +107,7 @@ pub mod pallet {
 			+ Default
 			+ sp_runtime::traits::MaybeDisplay
 			+ sp_runtime::traits::AtLeast32Bit
-			+ Copy
-			+ core::iter::Step;
+			+ Copy;
 
 		/// Weight information for extrinsics in this pallet.
 		type WeightInfo: WeightInfo;
@@ -490,14 +488,18 @@ pub mod pallet {
 							Some(collator.clone()),
 						);
 						writes += 1;
-						for i in Zero::zero()..T::RotatePeriod::get() {
+
+						let mut i = Zero::zero();
+						while i < T::RotatePeriod::get() {
 							OrbiterPerRound::<T>::insert(
 								round_index.saturating_add(i),
 								collator.clone(),
 								next_orbiter.clone(),
 							);
+							i += One::one();
 							writes += 1;
 						}
+
 						Self::deposit_event(Event::OrbiterRotation {
 							collator,
 							old_orbiter: maybe_old_orbiter.map(|orbiter| orbiter.account_id),

precompiles/assets-erc20/src/lib.rs

@@ -15,7 +15,6 @@
 // along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(test, feature(assert_matches))]
 
 use core::fmt::Display;
 use fp_evm::PrecompileHandle;

precompiles/author-mapping/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to interact with pallet author mapping through an evm precompile.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use fp_evm::PrecompileHandle;
 use frame_support::{

precompiles/balances-erc20/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to interact with pallet_balances instances using the ERC20 interface standard.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(test, feature(assert_matches))]
 
 use fp_evm::PrecompileHandle;
 use frame_support::{

precompiles/conviction-voting/src/lib.rs

@@ -15,7 +15,6 @@
 // along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use fp_evm::PrecompileHandle;
 use frame_support::dispatch::{Dispatchable, GetDispatchInfo, PostDispatchInfo};

precompiles/crowdloan-rewards/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to call pallet-crowdloan-rewards runtime methods via the EVM
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use fp_evm::PrecompileHandle;
 use frame_support::{

precompiles/pallet-democracy/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to interact with pallet democracy through an evm precompile.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use fp_evm::PrecompileHandle;
 use frame_support::dispatch::{Dispatchable, GetDispatchInfo, PostDispatchInfo};

precompiles/parachain-staking/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to call parachain-staking runtime methods via the EVM
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(test, feature(assert_matches))]
 
 #[cfg(test)]
 mod mock;

precompiles/preimage/src/lib.rs

@@ -15,7 +15,6 @@
 // along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use fp_evm::PrecompileHandle;
 use frame_support::dispatch::{Dispatchable, GetDispatchInfo, PostDispatchInfo};

precompiles/proxy/src/lib.rs

@@ -15,7 +15,6 @@
 // along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use evm::ExitReason;
 use fp_evm::{Context, PrecompileFailure, PrecompileHandle, Transfer};

precompiles/randomness/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to interact with randomness through an evm precompile.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 extern crate alloc;
 

precompiles/referenda/src/lib.rs

@@ -15,7 +15,6 @@
 // along with Moonbeam.  If not, see <http://www.gnu.org/licenses/>.
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![feature(assert_matches)]
 
 use fp_evm::PrecompileHandle;
 use frame_support::dispatch::{Dispatchable, GetDispatchInfo, PostDispatchInfo};

precompiles/relay-encoder/src/lib.rs

@@ -17,7 +17,6 @@
 //! Precompile to encode relay staking calls via the EVM
 
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(test, feature(assert_matches))]
 
 use cumulus_primitives_core::relay_chain;
 

precompiles/utils/macro/tests/compile-fail/precompile/discriminant/missing-param.stderr

@@ -2,4 +2,4 @@ error: The discriminant function must only take the code address (H160) as param
   --> tests/compile-fail/precompile/discriminant/missing-param.rs:25:2
    |
 25 |     fn discriminant() -> Option<u64> {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^

precompiles/utils/macro/tests/compile-fail/precompile/discriminant/too-many-arguments.stderr

@@ -2,4 +2,4 @@ error: The discriminant function must only take the code address (H160) as param
   --> tests/compile-fail/precompile/discriminant/too-many-arguments.rs:25:2
    |
 25 |     fn discriminant(address: H160, other: u32) -> Option<u32> {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^

precompiles/utils/macro/tests/compile-fail/precompile/evm-data/no-output.stderr

@@ -2,4 +2,4 @@ error: A precompile method must have a return type of `EvmResult<_>` (exposed by
   --> tests/compile-fail/precompile/evm-data/no-output.rs:24:2
    |
 24 |     fn foo(test: &mut impl PrecompileHandle) {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^

precompiles/utils/macro/tests/compile-fail/precompile/evm-data/output-dont-impl-evmdata.stderr

@@ -2,7 +2,7 @@ error[E0277]: the trait bound `String: EvmData` is not satisfied
   --> tests/compile-fail/precompile/evm-data/output-dont-impl-evmdata.rs:26:46
    |
 26 |     fn foo(test: &mut impl PrecompileHandle) -> EvmResult<String> {
-   |                                                 ^^^^^^^^^^^^^^^^^ the trait `EvmData` is not implemented for `String`
+   |                                                 ^^^^^^^^^ the trait `EvmData` is not implemented for `String`
    |
    = help: the following other types implement trait `EvmData`:
              ()

precompiles/utils/macro/tests/compile-fail/precompile/evm-data/output-wrong-error-result.stderr

@@ -1,8 +1,8 @@
 error[E0277]: `?` couldn't convert the error to `PrecompileFailure`
-  --> tests/compile-fail/precompile/evm-data/output-wrong-error-result.rs:25:63
+  --> tests/compile-fail/precompile/evm-data/output-wrong-error-result.rs:25:51
    |
 25 |     fn foo(test: &mut impl PrecompileHandle) -> Result<(), String> {
-   |                                                                  ^ the trait `From<String>` is not implemented for `PrecompileFailure`
+   |                                                      ^ the trait `From<String>` is not implemented for `PrecompileFailure`
    |
    = note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
    = help: the following other types implement trait `From<T>`:

precompiles/utils/macro/tests/compile-fail/precompile/handle/missing.stderr

@@ -2,4 +2,4 @@ error: Precompile methods must have at least 1 parameter (the PrecompileHandle)
   --> tests/compile-fail/precompile/handle/missing.rs:24:2
    |
 24 |     fn foo() {
-   |     ^^^^^^^^
+   |     ^^

precompiles/utils/macro/tests/compile-fail/precompile/handle/set-missing.stderr

@@ -2,4 +2,4 @@ error: PrecompileSet methods must have at least 2 parameters (the precompile ins
   --> tests/compile-fail/precompile/handle/set-missing.rs:25:2
    |
 25 |     fn foo(_: u32) {
-   |     ^^^^^^^^^^^^^^
+   |     ^^

precompiles/utils/macro/tests/compile-fail/precompile/pre-check/no-parameter.stderr

@@ -2,4 +2,4 @@ error: Precompile methods must have at least 1 parameter (the PrecompileHandle)
   --> tests/compile-fail/precompile/pre-check/no-parameter.rs:24:2
    |
 24 |     fn pre_check() {
-   |     ^^^^^^^^^^^^^^
+   |     ^^

precompiles/utils/macro/tests/compile-fail/precompile/pre-check/too-many-parameters.stderr

@@ -2,4 +2,4 @@ error: Precompile pre_check method must have exactly 1 parameter (the Precompile
   --> tests/compile-fail/precompile/pre-check/too-many-parameters.rs:24:2
    |
 24 |     fn pre_check(_: &mut impl PrecompileHandle, _: u32) {
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |     ^^