diff --git a/polkadot/parachain/src/primitives.rs b/polkadot/parachain/src/primitives.rs
index e3222b6cde..94bc2c9437 100644
--- a/polkadot/parachain/src/primitives.rs
+++ b/polkadot/parachain/src/primitives.rs
@@ -113,8 +113,8 @@ impl sp_std::fmt::LowerHex for ValidationCodeHash {
 /// Parachain block data.
 ///
 /// Contains everything required to validate para-block, may contain block and witness data.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, derive_more::From, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Debug, MallocSizeOf))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, derive_more::From, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Serialize, Deserialize, MallocSizeOf))]
 pub struct BlockData(#[cfg_attr(feature = "std", serde(with = "bytes"))] pub Vec<u8>);
 
 /// Unique identifier of a parachain.
diff --git a/polkadot/primitives/src/v0.rs b/polkadot/primitives/src/v0.rs
index c10de3b9a5..76f9230aaa 100644
--- a/polkadot/primitives/src/v0.rs
+++ b/polkadot/primitives/src/v0.rs
@@ -107,8 +107,8 @@ impl MallocSizeOf for ValidatorId {
 }
 
 /// Index of the validator is used as a lightweight replacement of the `ValidatorId` when appropriate.
-#[derive(Eq, Ord, PartialEq, PartialOrd, Copy, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Hash, MallocSizeOf, Debug))]
+#[derive(Eq, Ord, PartialEq, PartialOrd, Copy, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Hash, MallocSizeOf))]
 pub struct ValidatorIndex(pub u32);
 
 // We should really get https://github.com/paritytech/polkadot/issues/2403 going ..
@@ -206,8 +206,7 @@ impl SwapAux for () {
 }
 
 /// Identifier for a chain, either one of a number of parachains or the relay chain.
-#[derive(Copy, Clone, PartialEq, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug))]
+#[derive(Copy, Clone, PartialEq, Encode, Decode, TypeInfo, RuntimeDebug)]
 pub enum Chain {
 	/// The relay chain.
 	Relay,
@@ -216,8 +215,8 @@ pub enum Chain {
 }
 
 /// The duty roster specifying what jobs each validator must do.
-#[derive(Clone, PartialEq, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Default, Debug))]
+#[derive(Clone, PartialEq, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Default))]
 pub struct DutyRoster {
 	/// Lookup from validator index to chain on which that validator has a duty to validate.
 	pub validator_duty: Vec<Chain>,
@@ -227,8 +226,8 @@ pub struct DutyRoster {
 /// to fully validate the candidate.
 ///
 /// These are global parameters that apply to all parachain candidates in a block.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Default))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Default))]
 pub struct GlobalValidationData<N = BlockNumber> {
 	/// The maximum code size permitted, in bytes.
 	pub max_code_size: u32,
@@ -240,8 +239,8 @@ pub struct GlobalValidationData<N = BlockNumber> {
 
 /// Extra data that is needed along with the other fields in a `CandidateReceipt`
 /// to fully validate the candidate. These fields are parachain-specific.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Default))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Default))]
 pub struct LocalValidationData<N = BlockNumber> {
 	/// The parent head-data.
 	pub parent_head: HeadData,
@@ -262,8 +261,8 @@ pub struct LocalValidationData<N = BlockNumber> {
 }
 
 /// Commitments made in a `CandidateReceipt`. Many of these are outputs of validation.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Default))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Default))]
 pub struct CandidateCommitments<H = Hash> {
 	/// Fees paid from the chain to the relay chain validators.
 	pub fees: Balance,
@@ -311,8 +310,7 @@ fn check_collator_signature<H: AsRef<[u8]>>(
 }
 
 /// All data pertaining to the execution of a parachain candidate.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
 pub struct CandidateReceipt<H = Hash, N = BlockNumber> {
 	/// The ID of the parachain this is a candidate for.
 	pub parachain_index: Id,
@@ -396,8 +394,8 @@ impl Ord for CandidateReceipt {
 
 /// All the data which is omitted in an `AbridgedCandidateReceipt`, but that
 /// is necessary for validation of the parachain candidate.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Default))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Default))]
 pub struct OmittedValidationData<N = BlockNumber> {
 	/// The global validation schedule.
 	pub global_validation: GlobalValidationData<N>,
@@ -410,8 +408,7 @@ pub struct OmittedValidationData<N = BlockNumber> {
 /// Much info in a candidate-receipt is duplicated from the relay-chain state.
 /// When submitting to the relay-chain, this data should be omitted as it can
 /// be re-generated from relay-chain state.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
 pub struct AbridgedCandidateReceipt<H = Hash> {
 	/// The ID of the parachain this is a candidate for.
 	pub parachain_index: Id,
@@ -545,8 +542,7 @@ impl Ord for AbridgedCandidateReceipt {
 }
 
 /// A unique descriptor of the candidate receipt, in a lightweight format.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
 pub struct CandidateDescriptor<H = Hash> {
 	/// The ID of the para this is a candidate for.
 	pub para_id: Id,
@@ -565,8 +561,7 @@ pub struct CandidateDescriptor<H = Hash> {
 }
 
 /// A collation sent by a collator.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
 pub struct CollationInfo {
 	/// The ID of the parachain this is a candidate for.
 	pub parachain_index: Id,
@@ -619,8 +614,8 @@ impl CollationInfo {
 }
 
 /// A full collation.
-#[derive(PartialEq, Eq, Clone)]
-#[cfg_attr(feature = "std", derive(Debug, Encode, Decode, TypeInfo))]
+#[derive(PartialEq, Eq, Clone, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Encode, Decode, TypeInfo))]
 pub struct Collation {
 	/// Candidate receipt itself.
 	pub info: CollationInfo,
@@ -629,8 +624,8 @@ pub struct Collation {
 }
 
 /// A Proof-of-Validation block.
-#[derive(PartialEq, Eq, Clone)]
-#[cfg_attr(feature = "std", derive(Debug, Encode, Decode, TypeInfo))]
+#[derive(PartialEq, Eq, Clone, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Encode, Decode, TypeInfo))]
 pub struct PoVBlock {
 	/// Block data.
 	pub block_data: BlockData,
@@ -645,8 +640,8 @@ impl PoVBlock {
 }
 
 /// The data that is kept available about a particular parachain block.
-#[derive(PartialEq, Eq, Clone)]
-#[cfg_attr(feature = "std", derive(Debug, Encode, Decode, TypeInfo))]
+#[derive(PartialEq, Eq, Clone, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Encode, Decode, TypeInfo))]
 pub struct AvailableData {
 	/// The PoV block.
 	pub pov_block: PoVBlock,
@@ -660,8 +655,8 @@ const BACKING_STATEMENT_MAGIC: [u8; 4] = *b"BKNG";
 
 /// Statements that can be made about parachain candidates. These are the
 /// actual values that are signed.
-#[derive(Clone, PartialEq, Eq)]
-#[cfg_attr(feature = "std", derive(Debug, Hash))]
+#[derive(Clone, PartialEq, Eq, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Hash))]
 pub enum CompactStatement {
 	/// Proposal of a parachain candidate.
 	Seconded(CandidateHash),
@@ -818,8 +813,10 @@ impl AttestedCandidate {
 }
 
 /// A fee schedule for messages. This is a linear function in the number of bytes of a message.
-#[derive(PartialEq, Eq, PartialOrd, Hash, Default, Clone, Copy, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Serialize, Deserialize, Debug))]
+#[derive(
+	PartialEq, Eq, PartialOrd, Hash, Default, Clone, Copy, Encode, Decode, TypeInfo, RuntimeDebug,
+)]
+#[cfg_attr(feature = "std", derive(Serialize, Deserialize))]
 pub struct FeeSchedule {
 	/// The base fee charged for all messages.
 	pub base: Balance,
diff --git a/polkadot/primitives/src/v1/mod.rs b/polkadot/primitives/src/v1/mod.rs
index e4c3d30f36..a36d317ede 100644
--- a/polkadot/primitives/src/v1/mod.rs
+++ b/polkadot/primitives/src/v1/mod.rs
@@ -336,8 +336,8 @@ fn check_collator_signature<H: AsRef<[u8]>>(
 }
 
 /// A unique descriptor of the candidate receipt.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Hash, MallocSizeOf))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Hash, MallocSizeOf))]
 pub struct CandidateDescriptor<H = Hash> {
 	/// The ID of the para this is a candidate for.
 	pub para_id: Id,
@@ -378,8 +378,8 @@ impl<H: AsRef<[u8]>> CandidateDescriptor<H> {
 }
 
 /// A candidate-receipt.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, MallocSizeOf))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(MallocSizeOf))]
 pub struct CandidateReceipt<H = Hash> {
 	/// The descriptor of the candidate.
 	pub descriptor: CandidateDescriptor<H>,
@@ -403,8 +403,7 @@ impl<H> CandidateReceipt<H> {
 }
 
 /// All data pertaining to the execution of a para candidate.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
 pub struct FullCandidateReceipt<H = Hash, N = BlockNumber> {
 	/// The inner candidate receipt.
 	pub inner: CandidateReceipt<H>,
@@ -416,8 +415,8 @@ pub struct FullCandidateReceipt<H = Hash, N = BlockNumber> {
 }
 
 /// A candidate-receipt with commitments directly included.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Hash, MallocSizeOf))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Hash, MallocSizeOf))]
 pub struct CommittedCandidateReceipt<H = Hash> {
 	/// The descriptor of the candidate.
 	pub descriptor: CandidateDescriptor<H>,
@@ -497,8 +496,8 @@ impl Ord for CommittedCandidateReceipt {
 ///
 /// The `PersistedValidationData` should be relatively lightweight primarily because it is constructed
 /// during inclusion for each candidate and therefore lies on the critical path of inclusion.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Default, MallocSizeOf))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Default, MallocSizeOf))]
 pub struct PersistedValidationData<H = Hash, N = BlockNumber> {
 	/// The parent head-data.
 	pub parent_head: HeadData,
@@ -518,8 +517,8 @@ impl<H: Encode, N: Encode> PersistedValidationData<H, N> {
 }
 
 /// Commitments made in a `CandidateReceipt`. Many of these are outputs of validation.
-#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Hash, MallocSizeOf, Default))]
+#[derive(PartialEq, Eq, Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(Hash, MallocSizeOf, Default))]
 pub struct CandidateCommitments<N = BlockNumber> {
 	/// Messages destined to be interpreted by the Relay chain itself.
 	pub upward_messages: Vec<UpwardMessage>,
@@ -655,8 +654,10 @@ pub fn check_candidate_backing<H: AsRef<[u8]> + Clone + Encode>(
 }
 
 /// The unique (during session) index of a core.
-#[derive(Encode, Decode, Default, PartialOrd, Ord, Eq, PartialEq, Clone, Copy, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, Hash, MallocSizeOf))]
+#[derive(
+	Encode, Decode, Default, PartialOrd, Ord, Eq, PartialEq, Clone, Copy, TypeInfo, RuntimeDebug,
+)]
+#[cfg_attr(feature = "std", derive(Hash, MallocSizeOf))]
 pub struct CoreIndex(pub u32);
 
 impl From<u32> for CoreIndex {
@@ -677,13 +678,13 @@ impl From<u32> for GroupIndex {
 }
 
 /// A claim on authoring the next block for a given parathread.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(PartialEq, Debug))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq))]
 pub struct ParathreadClaim(pub Id, pub CollatorId);
 
 /// An entry tracking a claim to ensure it does not pass the maximum number of retries.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(PartialEq, Debug))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq))]
 pub struct ParathreadEntry {
 	/// The claim.
 	pub claim: ParathreadClaim,
@@ -692,8 +693,8 @@ pub struct ParathreadEntry {
 }
 
 /// What is occupying a specific availability core.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(PartialEq, Debug))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq))]
 pub enum CoreOccupied {
 	/// A parathread.
 	Parathread(ParathreadEntry),
@@ -702,8 +703,8 @@ pub enum CoreOccupied {
 }
 
 /// A helper data-type for tracking validator-group rotations.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(PartialEq, Debug, MallocSizeOf))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq, MallocSizeOf))]
 pub struct GroupRotationInfo<N = BlockNumber> {
 	/// The block number where the session started.
 	pub session_start_block: N,
@@ -790,8 +791,8 @@ impl<N: Saturating + BaseArithmetic + Copy> GroupRotationInfo<N> {
 }
 
 /// Information about a core which is currently occupied.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, PartialEq, MallocSizeOf))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq, MallocSizeOf))]
 pub struct OccupiedCore<H = Hash, N = BlockNumber> {
 	// NOTE: this has no ParaId as it can be deduced from the candidate descriptor.
 	/// If this core is freed by availability, this is the assignment that is next up on this
@@ -826,8 +827,8 @@ impl<H, N> OccupiedCore<H, N> {
 }
 
 /// Information about a core which is currently occupied.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, PartialEq, MallocSizeOf))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq, MallocSizeOf))]
 pub struct ScheduledCore {
 	/// The ID of a para scheduled.
 	pub para_id: Id,
@@ -836,8 +837,8 @@ pub struct ScheduledCore {
 }
 
 /// The state of a particular availability core.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(Debug, PartialEq, MallocSizeOf))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq, MallocSizeOf))]
 pub enum CoreState<H = Hash, N = BlockNumber> {
 	/// The core is currently occupied.
 	#[codec(index = 0)]
@@ -872,8 +873,8 @@ impl<N> CoreState<N> {
 }
 
 /// An assumption being made about the state of an occupied core.
-#[derive(Clone, Copy, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(PartialEq, Eq, Hash, Debug))]
+#[derive(Clone, Copy, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq, Eq, Hash))]
 pub enum OccupiedCoreAssumption {
 	/// The candidate occupying the core was made available and included to free the core.
 	#[codec(index = 0)]
@@ -887,8 +888,8 @@ pub enum OccupiedCoreAssumption {
 }
 
 /// An even concerning a candidate.
-#[derive(Clone, Encode, Decode, TypeInfo)]
-#[cfg_attr(feature = "std", derive(PartialEq, Debug, MallocSizeOf))]
+#[derive(Clone, Encode, Decode, TypeInfo, RuntimeDebug)]
+#[cfg_attr(feature = "std", derive(PartialEq, MallocSizeOf))]
 pub enum CandidateEvent<H = Hash> {
 	/// This candidate receipt was backed in the most recent block.
 	/// This includes the core index the candidate is now occupying.