Update Rust toolchains to nightly-2026-03-24

apps/hash-graph/src/main.rs

@@ -1,10 +1,6 @@
 //! # HASH Graph
 //!
 //! ## Workspace dependencies
-#![feature(
-    // Language features
-    impl_trait_in_assoc_type
-)]
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
 #![forbid(unsafe_code)]
 #![expect(

libs/@blockprotocol/type-system/rust/src/knowledge/entity/mod.rs

@@ -211,11 +211,11 @@ mod tests {
                     .enumerate()
                     .find(|(_, diff)| **diff == expected)
                     .unwrap_or_else(|| {
-                        panic!("unexpected diff found: {expected:#?}\n\nactual: {diff:#?}",)
+                        panic!("unexpected diff found: {expected:#?}\n\nactual: {diff:#?}")
                     });
                 diff.remove(idx);
             }
-            assert!(diff.is_empty(), "missing diffs: {diff:#?}",);
+            assert!(diff.is_empty(), "missing diffs: {diff:#?}");
         }
 
         fn create_base_url(property: usize) -> BaseUrl {

libs/@blockprotocol/type-system/rust/src/lib.rs

@@ -1,9 +1,6 @@
 #![feature(
     // Language Features
     impl_trait_in_assoc_type,
-
-    // Library Features
-    extend_one,
 )]
 #![expect(unsafe_code)]
 #![cfg_attr(

libs/@local/codegen/src/typescript.rs

@@ -341,7 +341,7 @@ impl<'a, 'c> TypeScriptGenerator<'a, 'c> {
             | Type::NonEmptyList(_)
             | Type::Map(_)
             | Type::Nullable(_)) => {
-                unimplemented!("Tried to generate an interface from unsupported type: {ty:?}",)
+                unimplemented!("Tried to generate an interface from unsupported type: {ty:?}")
             }
         };
 

libs/@local/graph/api/src/lib.rs

@@ -8,7 +8,6 @@
     return_type_notation,
 
     // Library Features
-    assert_matches,
     error_generic_member_access,
 )]
 

libs/@local/graph/authorization/src/lib.rs

@@ -6,8 +6,6 @@
     // Language Features
     exhaustive_patterns,
     impl_trait_in_assoc_type,
-    never_type,
-    type_alias_impl_trait,
 )]
 
 extern crate alloc;

libs/@local/graph/authorization/tests/policies/main.rs

@@ -1,8 +1,3 @@
-#![feature(
-    // Library Features
-    assert_matches,
-)]
-
 extern crate alloc;
 
 mod definitions;

libs/@local/graph/migrations/src/bin/cli/main.rs

@@ -1,6 +1,5 @@
 #![feature(
     // Language Features
-    impl_trait_in_assoc_type,
     return_type_notation,
 )]
 #![expect(clippy::future_not_send)]

libs/@local/graph/migrations/src/lib.rs

@@ -5,7 +5,6 @@
 #![feature(
     // Language Features
     impl_trait_in_assoc_type,
-    never_type,
     return_type_notation,
 )]
 #![expect(clippy::future_not_send)]

libs/@local/graph/postgres-store/src/lib.rs

@@ -4,16 +4,12 @@
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
 #![feature(
     // Language Features
-    doc_cfg,
     impl_trait_in_assoc_type,
     never_type,
-    trait_alias,
-    type_alias_impl_trait,
 
     // Library Features
     extend_one,
     iter_intersperse,
-    try_find,
 )]
 #![cfg_attr(not(miri), doc(test(attr(deny(warnings, clippy::all)))))]
 #![expect(

libs/@local/graph/postgres-store/tests/deletion/main.rs

@@ -1,4 +1,3 @@
-#![feature(assert_matches)]
 #![expect(clippy::missing_panics_doc, clippy::missing_errors_doc)]
 
 #[path = "../common/mod.rs"]

libs/@local/graph/postgres-store/tests/principals/main.rs

@@ -1,7 +1,3 @@
-#![feature(
-    // Library Features
-    assert_matches,
-)]
 #![expect(clippy::panic_in_result_fn, clippy::missing_panics_doc)]
 
 extern crate alloc;

libs/@local/graph/store/src/lib.rs

@@ -5,8 +5,11 @@
 #![feature(
     // Language Features
     impl_trait_in_assoc_type,
-    never_type,
 )]
+#![cfg_attr(test, feature(
+    // Language Features
+    never_type
+))]
 
 extern crate alloc;
 

libs/@local/graph/types/src/lib.rs

@@ -2,10 +2,6 @@
 //!
 //! ## Workspace dependencies
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
-#![feature(
-    // Language Features
-    impl_trait_in_assoc_type,
-)]
 
 extern crate alloc;
 

libs/@local/graph/validation/src/lib.rs

@@ -2,10 +2,6 @@
 //!
 //! ## Workspace dependencies
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
-#![feature(
-    // Library Features
-    extend_one,
-)]
 
 extern crate alloc;
 

libs/@local/harpc/client/rust/src/lib.rs

@@ -6,7 +6,6 @@
     // Language Features
     impl_trait_in_assoc_type,
     never_type,
-    type_alias_impl_trait,
 )]
 
 extern crate alloc;

libs/@local/harpc/codec/src/lib.rs

@@ -3,10 +3,6 @@
 //! ## Workspace dependencies
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
 #![feature(
-    // Language Features
-    impl_trait_in_assoc_type,
-    macro_metavar_expr,
-
     // Library Features
     error_generic_member_access,
 )]

libs/@local/harpc/net/src/lib.rs

@@ -4,16 +4,14 @@
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
 #![feature(
     // Language Features
-    impl_trait_in_assoc_type,
     never_type,
     stmt_expr_attributes,
     trait_alias,
-    type_alias_impl_trait,
 
     // Library Features
     error_generic_member_access,
 )]
-#![cfg_attr(test, feature(assert_matches, async_fn_track_caller))]
+#![cfg_attr(test, feature(async_fn_track_caller))]
 
 extern crate alloc;
 

libs/@local/harpc/tower/src/lib.rs

@@ -10,7 +10,6 @@
     // Library Features
     error_generic_member_access,
 )]
-#![cfg_attr(test, feature(assert_matches, macro_metavar_expr))]
 
 extern crate alloc;
 

libs/@local/harpc/types/src/subsystem.rs

@@ -45,6 +45,6 @@ impl Display for SubsystemDescriptor {
     fn fmt(&self, fmt: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
         let &Self { id, version } = self;
 
-        write!(fmt, "{id}@{version}",)
+        write!(fmt, "{id}@{version}")
     }
 }

libs/@local/harpc/wire-protocol/src/lib.rs

@@ -15,9 +15,7 @@
 #![cfg_attr(test, feature(async_fn_track_caller))]
 #![feature(
     // Language Features
-    associated_type_defaults,
     exhaustive_patterns,
-    never_type,
 )]
 
 pub mod codec;

libs/@local/hashql/ast/src/lib.rs

@@ -49,15 +49,13 @@
 #![feature(
     // Language Features
     coverage_attribute,
-    if_let_guard,
     macro_metavar_expr_concat,
 
     // Library Features
     allocator_api,
     formatting_options,
     iter_intersperse,
 )]
-#![cfg_attr(test, feature(assert_matches))]
 
 extern crate alloc;
 

libs/@local/hashql/compiletest/src/lib.rs

@@ -4,10 +4,8 @@
 #![feature(
     // Language Features
     coverage_attribute,
-    if_let_guard,
 
     // Library Features
-    assert_matches,
     duration_millis_float,
     exitcode_exit_method,
     file_buffered,

libs/@local/hashql/core/src/lib.rs

@@ -8,7 +8,6 @@
     arbitrary_self_types,
     associated_type_defaults,
     coverage_attribute,
-    if_let_guard,
     impl_trait_in_assoc_type,
     macro_metavar_expr,
     macro_metavar_expr_concat,
@@ -17,15 +16,11 @@
 
     // Library Features
     allocator_api,
-    assert_matches,
     binary_heap_into_iter_sorted,
     clone_from_ref,
     const_cmp,
-    const_ops,
     const_trait_impl,
-    debug_closure_helpers,
     extend_one,
-    formatting_options,
     get_disjoint_mut_helpers,
     iter_intersperse,
     iter_map_windows,

libs/@local/hashql/core/src/type/error.rs

@@ -1063,7 +1063,7 @@ pub(crate) fn type_parameter_not_found<K>(
     )
     .primary(Label::new(
         param.span,
-        format!("Invalid reference to undefined type parameter ?{argument}",),
+        format!("Invalid reference to undefined type parameter ?{argument}"),
     ));
 
     diagnostic.add_message(Message::help(

libs/@local/hashql/diagnostics/src/lib.rs

@@ -4,7 +4,6 @@
 #![cfg_attr(doc, doc = simple_mermaid::mermaid!("../docs/dependency-diagram.mmd"))]
 #![feature(
     // Language Features
-    trait_alias,
     const_trait_impl,
     const_convert,
     const_default,

libs/@local/hashql/eval/src/lib.rs

@@ -7,7 +7,6 @@
     // Language Features
     coverage_attribute,
     exhaustive_patterns,
-    if_let_guard,
     never_type,
 
     // Library Features

libs/@local/hashql/hir/src/lib.rs

@@ -13,7 +13,6 @@
 
     // Library Features
     allocator_api,
-    iter_intersperse,
     try_trait_v2,
     unwrap_infallible,
 )]

libs/@local/hashql/macros/src/lib.rs

@@ -1,4 +1,4 @@
-#![feature(proc_macro_diagnostic, proc_macro_totokens)]
+#![feature(proc_macro_diagnostic)]
 
 extern crate alloc;
 extern crate proc_macro;

libs/@local/hashql/mir/benches/execution.rs

@@ -1,5 +1,4 @@
 #![expect(clippy::significant_drop_tightening)]
-#![feature(allocator_api)]
 
 extern crate alloc;
 

libs/@local/hashql/mir/src/lib.rs

@@ -7,33 +7,32 @@
     associated_type_defaults,
     coverage_attribute,
     exhaustive_patterns,
-    if_let_guard,
     impl_trait_in_assoc_type,
     macro_metavar_expr_concat,
     never_type,
     const_trait_impl,
 
     // Library Features
     allocator_api,
-    assert_matches,
     binary_heap_drain_sorted,
     clone_from_ref,
     const_type_name,
     get_mut_unchecked,
     iter_array_chunks,
     iter_collect_into,
-    iter_intersperse,
-    iterator_try_collect,
     likely_unlikely,
-    maybe_uninit_array_assume_init,
     maybe_uninit_fill,
     step_trait,
-    string_from_utf8_lossy_owned,
     try_trait_v2,
     temporary_niche_types,
     const_convert,
     variant_count,
 )]
+#![cfg_attr(test, feature(
+    // Library Features
+    maybe_uninit_array_assume_init,
+    string_from_utf8_lossy_owned,
+))]
 #![expect(clippy::indexing_slicing)]
 extern crate alloc;
 

libs/@local/hashql/mir/src/pass/transform/inline/heuristics.rs

@@ -227,7 +227,7 @@ impl<A: Allocator> InlineHeuristics<'_, '_, A> {
         }
 
         // Subtract size penalty: larger functions need more bonuses to be profitable.
-        score -= target_cost * self.config.size_penalty_factor;
+        score = target_cost.mul_add(-self.config.size_penalty_factor, score);
 
         score
     }

libs/@local/hashql/mir/src/pass/transform/inline/mod.rs

@@ -290,7 +290,10 @@ impl<'heap, A: Allocator> InlineState<'_, '_, '_, 'heap, A> {
 
         // Update caller cost: remove Apply costs and add callee costs.
         // This ensures subsequent callers see the true accumulated cost.
-        self.costs.properties[body].cost -= (targets.len() as f32) * self.config.cost.rvalue_apply;
+        self.costs.properties[body].cost = (targets.len() as f32).mul_add(
+            -self.config.cost.rvalue_apply,
+            self.costs.properties[body].cost,
+        );
         for target in targets {
             debug_assert_eq!(target.caller, body);