Import 'rustc-hash' package version 1.1.0

* Add OWNERS
Bug: 152884384
Test: make

Change-Id: Idc450fa9f02245b3dc3ec8fbf1bc852cdce821bc
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..249398e
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,19 @@
+name: "rustc-hash"
+description: "A speedy hash algorithm used within rustc. The hashmap in liballoc by default uses SipHash which isn\'t quite as speedy as we want. In the compiler we\'re not really worried about DOS attempts, so we use a fast non-cryptographic hash."
+third_party {
+  url {
+    type: HOMEPAGE
+    value: "https://crates.io/crates/rustc-hash"
+  }
+  url {
+    type: GIT
+    value: "https://github.com/rust-lang-nursery/rustc-hash"
+  }
+  version: "1.1.0"
+  license_type: NOTICE
+  last_upgrade_date {
+    year: 2020
+    month: 3
+    day: 31
+  }
+}