diff --git a/Cargo.lock b/Cargo.lock
index cdc6aef54a..3b8a143846 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1513,9 +1513,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_abi"
-version = "0.87.0"
+version = "0.91.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "28b782af0a7a8df16ddf43cd70da9f17bc3b1ce712c9e4992b6edb16f5f53632"
+checksum = "d5246e9e1f450333a990877eabbc36fe0567e7cedd56d5365db319e14079cf2a"
 dependencies = [
  "bitflags 2.7.0",
  "ra-ap-rustc_index",
@@ -1524,9 +1524,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_index"
-version = "0.87.0"
+version = "0.91.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ce5742f134960482f543b35ecebec3cacc6d79a9a685713518b4d8d70c5f9aa8"
+checksum = "59fd8e4f5b34c434ec111efb0e0614954db048b9307d3b2e4cc3c915da9d2160"
 dependencies = [
  "ra-ap-rustc_index_macros",
  "smallvec",
@@ -1534,9 +1534,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_index_macros"
-version = "0.87.0"
+version = "0.91.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d7ea011fcf68309a8835ad01d91c032cb18444617b00e2cab21d45b208164441"
+checksum = "2d34973fe081392bd1edb022e865e9952fcaa093f9cdae183edce64472e5e889"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1545,9 +1545,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_lexer"
-version = "0.87.0"
+version = "0.91.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eb76f0a4d4c20859e41f0a23bff0f37ab9ca9171c214a6c7dd72ea69434865dc"
+checksum = "52fa42c582e21b35e8f61a5afe3c63a9c722d995826762eb19b18beeccf5157f"
 dependencies = [
  "unicode-properties",
  "unicode-xid",
@@ -1555,9 +1555,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_parse_format"
-version = "0.87.0"
+version = "0.91.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "06080bd35078305421a62da77f3c128482d8d44441b6da8ce9d146d1cd9cdb5b"
+checksum = "740383328d7033393e5385f4a6073b880d5811b0fc0fd2559e481f905940f2f8"
 dependencies = [
  "ra-ap-rustc_index",
  "ra-ap-rustc_lexer",
@@ -1565,9 +1565,9 @@ dependencies = [
 
 [[package]]
 name = "ra-ap-rustc_pattern_analysis"
-version = "0.87.0"
+version = "0.91.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68a3154fe4c20c177d7b3c678a2d3a97aba0cca156ddef88959915041889daf0"
+checksum = "c39f544728f32cebffb1a8b92ba3c1f3dcb4144081438d192137ed197d479a9d"
 dependencies = [
  "ra-ap-rustc_index",
  "rustc-hash 2.0.0",
diff --git a/Cargo.toml b/Cargo.toml
index ab00d01739..3cecae0dc4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -87,11 +87,11 @@ vfs-notify = { path = "./crates/vfs-notify", version = "0.0.0" }
 vfs = { path = "./crates/vfs", version = "0.0.0" }
 edition = { path = "./crates/edition", version = "0.0.0" }
 
-ra-ap-rustc_lexer = { version = "0.87", default-features = false }
-ra-ap-rustc_parse_format = { version = "0.87", default-features = false }
-ra-ap-rustc_index = { version = "0.87", default-features = false }
-ra-ap-rustc_abi = { version = "0.87", default-features = false }
-ra-ap-rustc_pattern_analysis = { version = "0.87", default-features = false }
+ra-ap-rustc_lexer = { version = "0.91", default-features = false }
+ra-ap-rustc_parse_format = { version = "0.91", default-features = false }
+ra-ap-rustc_index = { version = "0.91", default-features = false }
+ra-ap-rustc_abi = { version = "0.91", default-features = false }
+ra-ap-rustc_pattern_analysis = { version = "0.91", default-features = false }
 
 # local crates that aren't published to crates.io. These should not have versions.
 
diff --git a/crates/hir-ty/src/layout.rs b/crates/hir-ty/src/layout.rs
index 0c1f63880c..108171586e 100644
--- a/crates/hir-ty/src/layout.rs
+++ b/crates/hir-ty/src/layout.rs
@@ -197,6 +197,7 @@ fn layout_of_simd_ty(
         align,
         max_repr_align: None,
         unadjusted_abi_align: align.abi,
+        randomization_seed: 0,
     }))
 }
 
@@ -313,6 +314,7 @@ pub fn layout_of_ty_query(
                 size,
                 max_repr_align: None,
                 unadjusted_abi_align: element.align.abi,
+                randomization_seed: 0,
             }
         }
         TyKind::Slice(element) => {
@@ -326,6 +328,7 @@ pub fn layout_of_ty_query(
                 size: Size::ZERO,
                 max_repr_align: None,
                 unadjusted_abi_align: element.align.abi,
+                randomization_seed: 0,
             }
         }
         TyKind::Str => Layout {
@@ -337,6 +340,7 @@ pub fn layout_of_ty_query(
             size: Size::ZERO,
             max_repr_align: None,
             unadjusted_abi_align: dl.i8_align.abi,
+            randomization_seed: 0,
         },
         // Potentially-wide pointers.
         TyKind::Ref(_, _, pointee) | TyKind::Raw(_, pointee) => {
diff --git a/rust-version b/rust-version
index 517fdfe18e..2d9a927c63 100644
--- a/rust-version
+++ b/rust-version
@@ -1 +1 @@
-fb546ee09b226bc4dd4b712d35a372d923c4fa54
+9a1d156f38c51441ee51e5a068f1d0caf4bb0f27