[rust] Add explicit dependency on unicode-normalization

Change-Id: Ied6f4c5ba8e123a964804de539e63d0a07689e81
diff --git a/rustc_deps/Cargo.lock b/rustc_deps/Cargo.lock
index 3919854..bffc2ea 100644
--- a/rustc_deps/Cargo.lock
+++ b/rustc_deps/Cargo.lock
@@ -444,6 +444,7 @@
  "timebomb 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "toml 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicase 2.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "unicode-normalization 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-segmentation 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 1.7.2 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/rustc_deps/Cargo.toml b/rustc_deps/Cargo.toml
index 2e80302..2f79c39 100644
--- a/rustc_deps/Cargo.toml
+++ b/rustc_deps/Cargo.toml
@@ -53,6 +53,7 @@
 timebomb = "0.1.2"
 toml = "0.4"
 unicase = "2.2.0"
+unicode-normalization = "0.1"
 unicode-segmentation = "1.0"
 unicode-width = "0.1.3"
 utf8parse = "0.1"