diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index a3d006be..7dabfb37 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -88,19 +88,6 @@ jobs:
         command: test
         args: ${{matrix.flags}}
 
-  feature_powerset:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v3
-    - uses: actions-rs/toolchain@v1
-      with:
-        toolchain: stable
-        override: true
-    - uses: taiki-e/install-action@v2
-      with:
-        tool: cargo-hack@0.5.25
-    - run: cargo hack check --feature-powerset --depth 2 --no-dev-deps --exclude-features "stdweb wasm-bindgen f32_float"
-
   # no-std builds are a bit more extensive to test
   no_std_build:
     name: NoStdBuild
diff --git a/codegen/src/test/function.rs b/codegen/src/test/function.rs
index 9db588e2..b45cc4bc 100644
--- a/codegen/src/test/function.rs
+++ b/codegen/src/test/function.rs
@@ -254,7 +254,7 @@ mod generate_tests {
                 }
                 (actual_diff, expected_diff)
             };
-            eprintln!("actual != expected, diverge at char {}", counter);
+            eprintln!("actual != expected, diverge at char {counter}");
             // eprintln!("  actual: {}", _actual_diff);
             // eprintln!("expected: {}", _expected_diff);
             // assert!(false);
diff --git a/codegen/src/test/module.rs b/codegen/src/test/module.rs
index 4ae05dfa..0f960956 100644
--- a/codegen/src/test/module.rs
+++ b/codegen/src/test/module.rs
@@ -301,7 +301,7 @@ mod generate_tests {
                 }
                 (actual_diff, expected_diff)
             };
-            eprintln!("actual != expected, diverge at char {}", counter);
+            eprintln!("actual != expected, diverge at char {counter}");
             // eprintln!("  actual: {}", _actual_diff);
             // eprintln!("expected: {}", _expected_diff);
             // assert!(false);
diff --git a/codegen/tests/test_functions.rs b/codegen/tests/test_functions.rs
index 8734f45b..3fdbf76a 100644
--- a/codegen/tests/test_functions.rs
+++ b/codegen/tests/test_functions.rs
@@ -62,7 +62,7 @@ mod raw_fn_str {
 
     #[export_fn]
     pub fn write_out_str(message: &str) -> bool {
-        eprintln!("{}", message);
+        eprintln!("{message}");
         true
     }
 }
diff --git a/codegen/tests/test_modules.rs b/codegen/tests/test_modules.rs
index 7524e2b0..cbc61568 100644
--- a/codegen/tests/test_modules.rs
+++ b/codegen/tests/test_modules.rs
@@ -82,7 +82,7 @@ pub mod raw_fn_str_module {
     #[export_module]
     pub mod host_io {
         pub fn write_out_str(message: &str) -> bool {
-            eprintln!("{}", message);
+            eprintln!("{message}");
             true
         }
     }
diff --git a/examples/event_handler_main/main.rs b/examples/event_handler_main/main.rs
index 43cfdb0e..2a1d8f79 100644
--- a/examples/event_handler_main/main.rs
+++ b/examples/event_handler_main/main.rs
@@ -44,7 +44,7 @@ pub fn main() {
     let mut input = String::new();
 
     // Read script file
-    print!("Script file [{}]: ", SCRIPT_FILE);
+    print!("Script file [{SCRIPT_FILE}]: ");
     stdout().flush().expect("flush stdout");
 
     input.clear();
diff --git a/src/api/eval.rs b/src/api/eval.rs
index 8c90a757..7c00e01e 100644
--- a/src/api/eval.rs
+++ b/src/api/eval.rs
@@ -212,12 +212,12 @@ impl Engine {
     }
     /// Evaluate an [`AST`] with own scope, returning the result value or an error.
     #[inline]
-    pub(crate) fn eval_ast_with_scope_raw<'a>(
+    pub(crate) fn eval_ast_with_scope_raw(
         &self,
         global: &mut GlobalRuntimeState,
         caches: &mut Caches,
         scope: &mut Scope,
-        ast: &'a AST,
+        ast: &AST,
     ) -> RhaiResult {
         let orig_source = mem::replace(&mut global.source, ast.source_raw().cloned());
 
diff --git a/src/ast/expr.rs b/src/ast/expr.rs
index ffafc09a..c8cdedb1 100644
--- a/src/ast/expr.rs
+++ b/src/ast/expr.rs
@@ -287,7 +287,6 @@ pub enum Expr {
     Array(Box<StaticVec<Expr>>, Position),
     /// #{ name:expr, ... }
     Map(
-        #[allow(clippy::type_complexity)]
         Box<(StaticVec<(Ident, Expr)>, BTreeMap<Identifier, Dynamic>)>,
         Position,
     ),
@@ -305,7 +304,6 @@ pub enum Expr {
     ),
     /// Property access - ((getter, hash), (setter, hash), prop)
     Property(
-        #[allow(clippy::type_complexity)]
         Box<(
             (ImmutableString, u64),
             (ImmutableString, u64),
diff --git a/src/lib.rs b/src/lib.rs
index 70eb5c9b..9ac564bb 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -185,7 +185,8 @@ const INT_BYTES: usize = std::mem::size_of::<INT>();
 /// Not available under `no_float`.
 ///
 /// If the `f32_float` feature is enabled, this will be [`f32`] instead.
-#[cfg(all(not(feature = "no_float"), not(feature = "f32_float")))]
+#[cfg(not(feature = "no_float"))]
+#[cfg(not(feature = "f32_float"))]
 pub type FLOAT = f64;
 
 /// The system floating-point type.
@@ -194,13 +195,15 @@ pub type FLOAT = f64;
 /// Not available under `no_float`.
 ///
 /// If the `f32_float` feature is not used, this will be `f64` instead.
-#[cfg(all(not(feature = "no_float"), feature = "f32_float"))]
+#[cfg(not(feature = "no_float"))]
+#[cfg(feature = "f32_float")]
 pub type FLOAT = f32;
 
 /// Number of bytes that make up a [`FLOAT`].
 ///
 /// It is 8 unless the `f32_float` feature is enabled when it will be 4.
-#[cfg(all(not(feature = "no_float"), not(feature = "no_index")))]
+#[cfg(not(feature = "no_float"))]
+#[cfg(not(feature = "no_index"))]
 const FLOAT_BYTES: usize = std::mem::size_of::<FLOAT>();
 
 /// An exclusive integer range.
@@ -213,7 +216,8 @@ type InclusiveRange = std::ops::RangeInclusive<INT>;
 pub use api::build_type::{CustomType, TypeBuilder};
 #[cfg(not(feature = "no_custom_syntax"))]
 pub use api::custom_syntax::Expression;
-#[cfg(all(not(feature = "no_std"), not(target_family = "wasm")))]
+#[cfg(not(feature = "no_std"))]
+#[cfg(not(target_family = "wasm"))]
 pub use api::files::{eval_file, run_file};
 pub use api::{eval::eval, events::VarDefInfo, run::run};
 pub use ast::{FnAccess, AST};
@@ -333,10 +337,12 @@ pub use ast::{
     Ident, OpAssignment, RangeCase, ScriptFnDef, Stmt, StmtBlock, SwitchCasesCollection,
 };
 
-#[cfg(all(feature = "internals", not(feature = "no_custom_syntax")))]
+#[cfg(feature = "internals")]
+#[cfg(not(feature = "no_custom_syntax"))]
 pub use ast::CustomExpr;
 
-#[cfg(all(feature = "internals", not(feature = "no_module")))]
+#[cfg(feature = "internals")]
+#[cfg(not(feature = "no_module"))]
 pub use ast::Namespace;
 
 #[cfg(feature = "internals")]
@@ -349,7 +355,8 @@ pub use eval::{Caches, FnResolutionCache, FnResolutionCacheEntry, GlobalRuntimeS
 #[allow(deprecated)]
 pub use func::{locked_read, locked_write, CallableFunction, NativeCallContextStore};
 
-#[cfg(all(feature = "internals", feature = "metadata"))]
+#[cfg(feature = "internals")]
+#[cfg(feature = "metadata")]
 pub use api::definitions::Definitions;
 
 /// Number of items to keep inline for [`StaticVec`].
@@ -452,26 +459,34 @@ type SmartString = smartstring::SmartString<smartstring::LazyCompact>;
 
 // Compiler guards against mutually-exclusive feature flags
 
-#[cfg(all(feature = "no_float", feature = "f32_float"))]
+#[cfg(feature = "no_float")]
+#[cfg(feature = "f32_float")]
 compile_error!("`f32_float` cannot be used with `no_float`");
 
-#[cfg(all(feature = "only_i32", feature = "only_i64"))]
+#[cfg(feature = "only_i32")]
+#[cfg(feature = "only_i64")]
 compile_error!("`only_i32` and `only_i64` cannot be used together");
 
-#[cfg(all(feature = "no_std", feature = "wasm-bindgen"))]
+#[cfg(feature = "no_std")]
+#[cfg(feature = "wasm-bindgen")]
 compile_error!("`wasm-bindgen` cannot be used with `no-std`");
 
-#[cfg(all(feature = "no_std", feature = "stdweb"))]
+#[cfg(feature = "no_std")]
+#[cfg(feature = "stdweb")]
 compile_error!("`stdweb` cannot be used with `no-std`");
 
-#[cfg(all(target_family = "wasm", feature = "no_std"))]
+#[cfg(target_family = "wasm")]
+#[cfg(feature = "no_std")]
 compile_error!("`no_std` cannot be used for WASM target");
 
-#[cfg(all(not(target_family = "wasm"), feature = "wasm-bindgen"))]
+#[cfg(not(target_family = "wasm"))]
+#[cfg(feature = "wasm-bindgen")]
 compile_error!("`wasm-bindgen` cannot be used for non-WASM target");
 
-#[cfg(all(not(target_family = "wasm"), feature = "stdweb"))]
+#[cfg(not(target_family = "wasm"))]
+#[cfg(feature = "stdweb")]
 compile_error!("`stdweb` cannot be used non-WASM target");
 
-#[cfg(all(feature = "wasm-bindgen", feature = "stdweb"))]
+#[cfg(feature = "wasm-bindgen")]
+#[cfg(feature = "stdweb")]
 compile_error!("`wasm-bindgen` and `stdweb` cannot be used together");
diff --git a/src/packages/time_basic.rs b/src/packages/time_basic.rs
index 828c8d8a..cf64bba1 100644
--- a/src/packages/time_basic.rs
+++ b/src/packages/time_basic.rs
@@ -155,7 +155,9 @@ mod time_functions {
                         })
                 }
             } else {
-                Ok(timestamp - Duration::from_millis((seconds * 1000.0) as u64))
+                Ok(timestamp
+                    .checked_sub(Duration::from_millis((seconds * 1000.0) as u64))
+                    .unwrap())
             }
         }
 
@@ -212,7 +214,9 @@ mod time_functions {
                     ))
                 })
         } else {
-            Ok(timestamp - Duration::from_secs(seconds as u64))
+            Ok(timestamp
+                .checked_sub(Duration::from_secs(seconds as u64))
+                .unwrap())
         }
     }
 
diff --git a/src/tokenizer.rs b/src/tokenizer.rs
index 16381ccf..f6a0a72e 100644
--- a/src/tokenizer.rs
+++ b/src/tokenizer.rs
@@ -1203,7 +1203,7 @@ const fn is_hex_digit(c: char) -> bool {
 /// Test if the given character is a numeric digit.
 #[inline(always)]
 const fn is_numeric_digit(c: char) -> bool {
-    matches!(c, '0'..='9')
+    c.is_ascii_digit()
 }
 
 /// Test if the comment block is a doc-comment.
diff --git a/src/types/fn_ptr.rs b/src/types/fn_ptr.rs
index 192fe674..155eaa27 100644
--- a/src/types/fn_ptr.rs
+++ b/src/types/fn_ptr.rs
@@ -99,7 +99,6 @@ impl FnPtr {
     #[cfg(not(feature = "no_function"))]
     #[inline(always)]
     #[must_use]
-    #[allow(clippy::type_complexity)]
     pub(crate) fn take_data(
         self,
     ) -> (