all: fix all cargo check warnings (#6102)

Fixes all 16 cargo check warnings across the codebase:

**Cargo.toml fixes:**
- Remove invalid `doc = false` key from git dependency

**Dead code warnings:**
- Add #[allow(dead_code)] to reference implementations and test utilities
- PoI struct and helper functions (proof_of_indexing/reference.rs)
- AscSubgraphEntityOp enum (runtime/wasm)
- CopyVid struct (store/postgres)

**Lifetime syntax warnings:**
- Add explicit '_ lifetime parameters to fix confusing syntax
- Fix 11 lifetime warnings across store, runtime, and utility modules

All tests pass and cargo check now produces zero warnings.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Claude <noreply@anthropic.com>

Author: fubhy

graph/Cargo.toml

@@ -61,7 +61,7 @@ sqlparser = { workspace = true }
 # stable-hash_legacy = { version = "0.3.3", package = "stable-hash" }
 # stable-hash = { version = "0.4.2" }
 stable-hash = { git = "https://github.com/graphprotocol/stable-hash", branch = "main" }
-stable-hash_legacy = { git = "https://github.com/graphprotocol/stable-hash", branch = "old", package = "stable-hash", doc = false }
+stable-hash_legacy = { git = "https://github.com/graphprotocol/stable-hash", branch = "old", package = "stable-hash" }
 strum_macros = "0.27.1"
 slog-async = "2.5.0"
 slog-envlogger = "2.1.0"

graph/src/components/store/write.rs

@@ -145,7 +145,7 @@ impl EntityModification {
 
     /// Return the details of the write if `self` is a write operation for a
     /// new or an existing entity
-    fn as_write(&self) -> Option<EntityWrite> {
+    fn as_write(&self) -> Option<EntityWrite<'_>> {
         EntityWrite::try_from(self).ok()
     }
 
@@ -823,7 +823,7 @@ impl Batch {
         &self,
         entity_type: &EntityType,
         at: BlockNumber,
-    ) -> impl Iterator<Item = EntityOp> {
+    ) -> impl Iterator<Item = EntityOp<'_>> {
         self.mods
             .group(entity_type)
             .map(|group| group.effective_ops(at))

graph/src/components/subgraph/proof_of_indexing/reference.rs

@@ -9,17 +9,20 @@ use web3::types::{Address, H256};
 /// well-implemented (without conflicting sequence numbers, or other oddities).
 /// It's just way easier to check that this works, and serves as a kind of
 /// documentation as a side-benefit.
+#[allow(dead_code)]
 pub struct PoI<'a> {
     pub causality_regions: HashMap<String, PoICausalityRegion<'a>>,
     pub subgraph_id: DeploymentHash,
     pub block_hash: H256,
     pub indexer: Option<Address>,
 }
 
+#[allow(dead_code)]
 fn h256_as_bytes(val: &H256) -> AsBytes<&[u8]> {
     AsBytes(val.as_bytes())
 }
 
+#[allow(dead_code)]
 fn indexer_opt_as_bytes(val: &Option<Address>) -> Option<AsBytes<&[u8]>> {
     val.as_ref().map(|v| AsBytes(v.as_bytes()))
 }

graph/src/util/timed_rw_lock.rs

@@ -20,7 +20,7 @@ impl<T> TimedRwLock<T> {
         }
     }
 
-    pub fn write(&self, logger: &Logger) -> parking_lot::RwLockWriteGuard<T> {
+    pub fn write(&self, logger: &Logger) -> parking_lot::RwLockWriteGuard<'_, T> {
         loop {
             let mut elapsed = Duration::from_secs(0);
             match self.lock.try_write_for(self.log_threshold) {
@@ -36,11 +36,11 @@ impl<T> TimedRwLock<T> {
         }
     }
 
-    pub fn try_read(&self) -> Option<parking_lot::RwLockReadGuard<T>> {
+    pub fn try_read(&self) -> Option<parking_lot::RwLockReadGuard<'_, T>> {
         self.lock.try_read()
     }
 
-    pub fn read(&self, logger: &Logger) -> parking_lot::RwLockReadGuard<T> {
+    pub fn read(&self, logger: &Logger) -> parking_lot::RwLockReadGuard<'_, T> {
         loop {
             let mut elapsed = Duration::from_secs(0);
             match self.lock.try_read_for(self.log_threshold) {
@@ -73,7 +73,7 @@ impl<T> TimedMutex<T> {
         }
     }
 
-    pub fn lock(&self, logger: &Logger) -> parking_lot::MutexGuard<T> {
+    pub fn lock(&self, logger: &Logger) -> parking_lot::MutexGuard<'_, T> {
         let start = Instant::now();
         let guard = self.lock.lock();
         let elapsed = start.elapsed();

runtime/wasm/src/module/instance.rs

@@ -141,7 +141,7 @@ impl WasmInstance {
         self.store.into_data()
     }
 
-    pub(crate) fn instance_ctx(&mut self) -> WasmInstanceContext {
+    pub(crate) fn instance_ctx(&mut self) -> WasmInstanceContext<'_> {
         WasmInstanceContext::new(&mut self.store)
     }
 

runtime/wasm/src/to_from/external.rs

@@ -466,6 +466,7 @@ where
 }
 
 #[derive(Debug, Clone, Eq, PartialEq, AscType)]
+#[allow(dead_code)]
 pub enum AscSubgraphEntityOp {
     Create,
     Modify,

store/postgres/src/relational/dsl.rs

@@ -176,7 +176,7 @@ impl<'a> Table<'a> {
     }
 
     /// Reference a column in this table and use the correct SQL type `ST`
-    fn bind<ST>(&self, name: &str) -> Option<BoundColumn<ST>> {
+    fn bind<ST>(&self, name: &str) -> Option<BoundColumn<'_, ST>> {
         self.column(name).map(|c| c.bind())
     }
 

store/postgres/src/relational_queries.rs

@@ -4976,6 +4976,7 @@ impl<'a, Conn> RunQueryDsl<Conn> for CountCurrentVersionsQuery<'a> {}
 /// Helper struct for returning the id's touched by the RevertRemove and
 /// RevertExtend queries
 #[derive(QueryableByName, PartialEq, Eq, Hash)]
+#[allow(dead_code)]
 pub struct CopyVid {
     #[diesel(sql_type = BigInt)]
     pub vid: i64,

store/postgres/src/subgraph_store.rs

@@ -789,7 +789,7 @@ impl SubgraphStoreInner {
     /// connections can deadlock the entire process if the pool runs out
     /// of connections in between getting the first one and trying to get the
     /// second one.
-    pub(crate) fn primary_conn(&self) -> Result<primary::Connection, StoreError> {
+    pub(crate) fn primary_conn(&self) -> Result<primary::Connection<'_>, StoreError> {
         let conn = self.mirror.primary().get()?;
         Ok(primary::Connection::new(conn))
     }

store/postgres/src/writable.rs

@@ -49,7 +49,7 @@ use crate::{primary, primary::Site, relational::Layout, SubgraphStore};
 struct WritableSubgraphStore(SubgraphStore);
 
 impl WritableSubgraphStore {
-    fn primary_conn(&self) -> Result<primary::Connection, StoreError> {
+    fn primary_conn(&self) -> Result<primary::Connection<'_>, StoreError> {
         self.0.primary_conn()
     }