Require a version of thread_local without the memory leak

Author: jyn514

Cargo.lock

@@ -86,6 +86,9 @@ notify = "4.0.15"
 chrono = { version = "0.4.11", features = ["serde"] }
 time = "0.1" # TODO: Remove once `iron` is removed
 
+# Transitive dependencies we don't use directly but need to have specific versions of
+thread_local = "1.1.3"
+
 [dependencies.postgres]
 version = "0.19"
 features = ["with-chrono-0_4", "with-serde_json-1"]