Support old lint name until the next stable release

Author: jtgeibel

src/tests/all.rs

@@ -1,4 +1,10 @@
 #![deny(warnings, clippy::all, rust_2018_idioms)]
+// TODO: Remove after we can bump to Rust 1.35 stable in `RustConfig`
+#![allow(
+    renamed_and_removed_lints,
+    clippy::cyclomatic_complexity,
+    clippy::unknown_clippy_lints
+)]
 
 #[macro_use]
 extern crate diesel;