Migrate rpc-servers, serializer, service and sr-io to the 2018 edition (#1732)

substrate/core/client/Cargo.toml

@@ -11,7 +11,6 @@ log = { version = "0.4", optional = true }
 parking_lot = { version = "0.7.1", optional = true }
 hex = { package = "hex-literal", version = "0.1", optional = true }
 futures = { version = "0.1.17", optional = true }
-slog = { version = "^2", optional = true }
 heapsize = { version = "0.4", optional = true }
 consensus = { package = "substrate-consensus-common", path = "../consensus/common", optional = true }
 executor = { package = "substrate-executor", path = "../executor", optional = true }
@@ -49,7 +48,6 @@ std = [
 	"log",
 	"hex",
 	"futures",
-	"slog",
 	"heapsize",
 	"executor",
 	"runtime-primitives/std",

substrate/core/client/src/client.rs

@@ -63,7 +63,6 @@ use crate::genesis;
 use consensus;
 use substrate_telemetry::telemetry;
 
-use slog::slog_info;
 use log::{info, trace, warn};
 use error_chain::bail;
 

substrate/core/client/src/light/backend.rs

@@ -501,6 +501,7 @@ mod tests {
 		}
 	}
 
+	#[test]
 	fn light_aux_store_is_updated_via_non_importing_op() {
 		let backend = Backend::new(Arc::new(DummyBlockchain::new(DummyStorage::new())));
 		let mut op = ClientBackend::<Block, Blake2Hasher>::begin_operation(&backend).unwrap();