diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index e012854..9a59717 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -33,4 +33,4 @@ jobs:
         toolchain: nightly
         override: true
         components: clippy
-    - run: cargo clippy -- -D warnings
+    - run: cargo clippy --all --all-targets -- -D warnings
diff --git a/Cargo.toml b/Cargo.toml
index 3dc54c9..6b2b92c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,13 +23,13 @@ optional = true
 [features]
 std = []
 
-#[dev-dependencies]
-#criterion = "0.3"
-#
-#[[bench]]
-#name = "from_iterator"
-#harness = false
-#path = "benches/from_iterator.rs"
+[dev-dependencies]
+criterion = "0.3"
+
+[[bench]]
+name = "from_iterator"
+harness = false
+path = "benches/from_iterator.rs"
 
 [workspace]
 members = [
diff --git a/test_suite/common.rs b/test_suite/common.rs
index c8cc4eb..d1a6920 100644
--- a/test_suite/common.rs
+++ b/test_suite/common.rs
@@ -86,7 +86,7 @@ fn iterator() {
     ];
 
     for &(bitflag, expected) in tests {
-        assert!(bitflag.iter().zip(expected.iter().cloned()).all(|(a, b)| a == b));
+        assert!(bitflag.iter().zip(expected.iter().copied()).all(|(a, b)| a == b));
         // If cloned, the iterator will yield the same elements.
         let it = bitflag.iter();
         assert!(it.clone().zip(it).all(|(a, b)| a == b));
@@ -109,7 +109,7 @@ fn assign_ops() {
 }
 
 #[test]
-fn fn_derive() {
+const fn fn_derive() {
     #[bitflags]
     #[derive(Copy, Clone, Debug)]
     #[repr(u8)]
@@ -119,7 +119,7 @@ fn fn_derive() {
 }
 
 #[test]
-fn module() {
+const fn module() {
     mod some_modules {
         #[enumflags2::bitflags]
         #[derive(Copy, Clone, Debug)]
@@ -145,9 +145,6 @@ fn inferred_values() {
         SpecifiedB = 4,
     }
 
-    assert_eq!(Inferred::Infer2 as u8, 2);
-    assert_eq!(Inferred::Infer8 as u8, 8);
-
     #[bitflags]
     #[derive(Copy, Clone, Debug)]
     #[repr(u8)]
@@ -158,6 +155,9 @@ fn inferred_values() {
         Infer8,
     }
 
+    assert_eq!(Inferred::Infer2 as u8, 2);
+    assert_eq!(Inferred::Infer8 as u8, 8);
+
     assert_eq!(OnlyInferred::Infer1 as u8, 1);
     assert_eq!(OnlyInferred::Infer2 as u8, 2);
     assert_eq!(OnlyInferred::Infer4 as u8, 4);
diff --git a/test_suite/tests/bitflag_tests_2018.rs b/test_suite/tests/bitflag_tests_2018.rs
index 9fffddb..07f55f9 100644
--- a/test_suite/tests/bitflag_tests_2018.rs
+++ b/test_suite/tests/bitflag_tests_2018.rs
@@ -1,3 +1,8 @@
-use enumflags2::bitflags;
+// "an inner attribute is not permitted in this context" :/
+#[deny(clippy::all, clippy::pedantic, clippy::nursery)]
+mod everything {
 
-include!("../common.rs");
+    use enumflags2::bitflags;
+
+    include!("../common.rs");
+}