collation-generation: use v2 receipts

polkadot/node/collation-generation/Cargo.toml

@@ -21,6 +21,7 @@ sp-core = { workspace = true, default-features = true }
 sp-maybe-compressed-blob = { workspace = true, default-features = true }
 thiserror = { workspace = true }
 codec = { features = ["bit-vec", "derive"], workspace = true }
+schnellru = { workspace = true }
 
 [dev-dependencies]
 polkadot-node-subsystem-test-helpers = { workspace = true }

polkadot/node/collation-generation/src/error.rs

@@ -14,6 +14,7 @@
 // You should have received a copy of the GNU General Public License
 // along with Polkadot.  If not, see <http://www.gnu.org/licenses/>.
 
+use polkadot_primitives::vstaging::CandidateReceiptError;
 use thiserror::Error;
 
 #[derive(Debug, Error)]
@@ -30,8 +31,12 @@ pub enum Error {
 	UtilRuntime(#[from] polkadot_node_subsystem_util::runtime::Error),
 	#[error(transparent)]
 	Erasure(#[from] polkadot_erasure_coding::Error),
-	#[error("Parachain backing state not available in runtime.")]
-	MissingParaBackingState,
+	#[error("Collation submitted before initialization")]
+	SubmittedBeforeInit,
+	#[error("V2 core index check failed: {0}")]
+	CandidateReceiptCheck(CandidateReceiptError),
+	#[error("PoV size {0} exceeded maximum size of {1}")]
+	POVSizeExceeded(usize, usize),
 }
 
 pub type Result<T> = std::result::Result<T, Error>;