Run clippy linter in CI

.github/workflows/ci.yml

@@ -43,3 +43,11 @@ jobs:
       - uses: actions/checkout@v2
       - uses: dtolnay/rust-toolchain@1.0.0
       - run: cargo build
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: dtolnay/rust-toolchain@clippy
+      - run: cargo clippy -- -Dclippy::all

src/lib.rs

@@ -59,10 +59,7 @@
 #![doc(html_root_url = "https://docs.rs/itoa/0.4.7")]
 #![cfg_attr(not(feature = "std"), no_std)]
 #![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
-#![cfg_attr(
-    feature = "cargo-clippy",
-    allow(const_static_lifetime, transmute_ptr_to_ptr)
-)]
+#![cfg_attr(feature = "cargo-clippy", allow(transmute_ptr_to_ptr))]
 
 #[cfg(feature = "i128")]
 mod udiv128;