Use labrpc from crates.io.

Cargo.toml

@@ -15,7 +15,7 @@ bytes = "1.0"
 crossbeam-utils = "0.8"
 futures-channel = "0.3.15"
 futures-util = "0.3.15"
-labrpc = { path = "../labrpc" }
+labrpc = "0.1.12"
 parking_lot = "0.11.1"
 rand = "0.8"
 serde = "1.0.116"

kvraft/Cargo.toml

@@ -6,7 +6,7 @@ edition = "2018"
 [dependencies]
 bincode = "1.3.3"
 bytes = "1.0"
-labrpc = { path = "../../labrpc" }
+labrpc = "0.1.12"
 parking_lot = "0.11.1"
 rand = "0.8"
 ruaft = { path = "../" }