THRIFT-5283: add support for Unix Domain Sockets in lib/rs (#2545)

Client: rs
diff --git a/lib/rs/test/Cargo.toml b/lib/rs/test/Cargo.toml
index 0ba96fd..47b8cbf 100644
--- a/lib/rs/test/Cargo.toml
+++ b/lib/rs/test/Cargo.toml
@@ -9,6 +9,7 @@
 [dependencies]
 clap = "~2.33"
 bitflags = "=1.2"
+log = "0.4"
 
 [dependencies.thrift]
 path = "../"