mention clippy improvement

Author: Mark-Simulacrum

posts/2021-05-06-Rust-1.52.0.md

@@ -27,12 +27,16 @@ from the appropriate page on our website, and check out the
 
 This release is fairly small, primarily containing stabilizations of various APIs in the standard library.
 
-This release also closes out a long-standing [bug] in the Rust compiler. Previously, LLVM assumed that the program would make progress, and used this to optimize. This meant that certain constructs in safe Rust were removed or otherwise miscompiled, such as infinite loops (`loop {}`) or recursion which didn't terminate.
+We have also closed out a long-standing [bug] in the Rust compiler. Previously, LLVM assumed that the program would make progress, and used this to optimize. This meant that certain constructs in safe Rust were removed or otherwise miscompiled, such as infinite loops (`loop {}`) or recursion which didn't terminate.
 
 In Rust 1.49.0, we landed a [partial fix] to this bug specifically targeting
 `loop {}`, but this fix brings an LLVM upgrade which avoids needing workarounds
 for these cases, fixing the larger class of bug.
 
+Clippy has also gained a significant usability improvement: it no longer shares
+its build cache with `cargo check`, which means that errors and warnings will be
+properly reported when running it after `cargo check`.
+
 [bug]: https://github.com/rust-lang/rust/issues/28728
 [partial fix]: https://github.com/rust-lang/rust/pull/77972