Integrate tracing (#6339)

Tracing Integration
- [reference](5bbf1859e9/projects/project-ideas.md (L297))


  - [x] replace slog & log with tracing throughout the codebase
- [x] implement custom crit log
- [x] make relevant changes in the formatter
- [x] replace sloggers
- [x] re-write SSE logging components

cc: @macladson @eserilev

beacon_node/network/src/sync/tests/lookups.rs

@@ -19,8 +19,8 @@ use beacon_chain::{
     block_verification_types::{AsBlock, BlockImportData},
     data_availability_checker::Availability,
     test_utils::{
-        build_log, generate_rand_block_and_blobs, generate_rand_block_and_data_columns, test_spec,
-        BeaconChainHarness, EphemeralHarnessType, LoggerType, NumBlobs,
+        generate_rand_block_and_blobs, generate_rand_block_and_data_columns, test_spec,
+        BeaconChainHarness, EphemeralHarnessType, NumBlobs,
     },
     validator_monitor::timestamp_now,
     AvailabilityPendingExecutedBlock, AvailabilityProcessingStatus, BlockError,
@@ -37,9 +37,9 @@ use lighthouse_network::{
     types::SyncState,
     NetworkConfig, NetworkGlobals, PeerId,
 };
-use slog::info;
 use slot_clock::{SlotClock, TestingSlotClock};
 use tokio::sync::mpsc;
+use tracing::info;
 use types::{
     data_column_sidecar::ColumnIndex,
     test_utils::{SeedableRng, TestRandom, XorShiftRng},
@@ -55,22 +55,12 @@ type DCByRootId = (SyncRequestId, Vec<ColumnIndex>);
 
 impl TestRig {
     pub fn test_setup() -> Self {
-        let logger_type = if cfg!(feature = "test_logger") {
-            LoggerType::Test
-        } else if cfg!(feature = "ci_logger") {
-            LoggerType::CI
-        } else {
-            LoggerType::Null
-        };
-        let log = build_log(slog::Level::Trace, logger_type);
-
         // Use `fork_from_env` logic to set correct fork epochs
         let spec = test_spec::<E>();
 
         // Initialise a new beacon chain
         let harness = BeaconChainHarness::<EphemeralHarnessType<E>>::builder(E)
             .spec(Arc::new(spec))
-            .logger(log.clone())
             .deterministic_keypairs(1)
             .fresh_ephemeral_store()
             .mock_execution_layer()
@@ -95,7 +85,6 @@ impl TestRig {
         let network_config = Arc::new(NetworkConfig::default());
         let globals = Arc::new(NetworkGlobals::new_test_globals(
             Vec::new(),
-            &log,
             network_config,
             chain.spec.clone(),
         ));
@@ -104,7 +93,6 @@ impl TestRig {
             sync_tx,
             chain.clone(),
             harness.runtime.task_executor.clone(),
-            log.clone(),
         );
 
         let fork_name = chain.spec.fork_name_at_slot::<E>(chain.slot().unwrap());
@@ -137,11 +125,9 @@ impl TestRig {
                     required_successes: vec![SAMPLING_REQUIRED_SUCCESSES],
                 },
                 fork_context,
-                log.clone(),
             ),
             harness,
             fork_name,
-            log,
             spec,
         }
     }
@@ -165,7 +151,7 @@ impl TestRig {
     }
 
     pub fn log(&self, msg: &str) {
-        info!(self.log, "TEST_RIG"; "msg" => msg);
+        info!(msg, "TEST_RIG");
     }
 
     pub fn after_deneb(&self) -> bool {
@@ -2318,11 +2304,6 @@ mod deneb_only {
             })
         }
 
-        fn log(self, msg: &str) -> Self {
-            self.rig.log(msg);
-            self
-        }
-
         fn trigger_unknown_block_from_attestation(mut self) -> Self {
             let block_root = self.block.canonical_root();
             self.rig
@@ -2626,6 +2607,11 @@ mod deneb_only {
                 .block_imported()
         }
 
+        fn log(self, msg: &str) -> Self {
+            self.rig.log(msg);
+            self
+        }
+
         fn parent_block_then_empty_parent_blobs(self) -> Self {
             self.log(
                 " Return empty blobs for parent, block errors with missing components, downscore",