diff --git a/Cargo.toml b/Cargo.toml
index cbfee8e5cd..714b481d29 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -33,7 +33,7 @@ rustdoc-args = ["--cfg", "doc_cfg", "--generate-link-to-definition"]
 [package.metadata.ci]
 # The versions of the stable and nightly compiler toolchains to use in CI.
 pinned-stable = "1.80.0"
-pinned-nightly = "nightly-2024-07-28"
+pinned-nightly = "nightly-2024-10-01"
 
 [package.metadata.playground]
 features = ["__internal_use_only_features_that_work_on_stable"]
diff --git a/tests/ui-nightly/transmute-mut-const.stderr b/tests/ui-nightly/transmute-mut-const.stderr
index 07c4c82ef2..d9c8c2017b 100644
--- a/tests/ui-nightly/transmute-mut-const.stderr
+++ b/tests/ui-nightly/transmute-mut-const.stderr
@@ -13,16 +13,6 @@ note: `const` item defined here
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
    = note: `#[warn(const_item_mutation)]` on by default
 
-error[E0658]: mutable references are not allowed in constants
-  --> tests/ui-nightly/transmute-mut-const.rs:20:52
-   |
-20 | const CONST_CONTEXT: &mut [u8; 2] = transmute_mut!(&mut ARRAY_OF_U8S);
-   |                                                    ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #57349 <https://github.com/rust-lang/rust/issues/57349> for more information
-   = help: add `#![feature(const_mut_refs)]` to the crate attributes to enable
-   = note: this compiler was built on 2024-07-27; consider upgrading it if it is out of date
-
 error[E0015]: cannot call non-const fn `transmute_mut::<'_, '_, [u8; 2], [u8; 2]>` in constants
   --> tests/ui-nightly/transmute-mut-const.rs:20:37
    |
diff --git a/tests/ui-nightly/transmute-mut-dst-unsized.stderr b/tests/ui-nightly/transmute-mut-dst-unsized.stderr
index 5e3fbb4bfc..aaeceddcbf 100644
--- a/tests/ui-nightly/transmute-mut-dst-unsized.stderr
+++ b/tests/ui-nightly/transmute-mut-dst-unsized.stderr
@@ -64,7 +64,7 @@ error[E0277]: the size for values of type `[u8]` cannot be known at compilation
    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[u8]`
-note: required by an implicit `Sized` bound in `transmute`
+note: required by an implicit `Sized` bound in `std::intrinsics::transmute`
   --> $RUST/core/src/intrinsics.rs
    |
    |     pub fn transmute<Src, Dst>(src: Src) -> Dst;
diff --git a/tests/ui-nightly/transmute-mut-src-dst-unsized.stderr b/tests/ui-nightly/transmute-mut-src-dst-unsized.stderr
index 2fe66581f5..bee999c338 100644
--- a/tests/ui-nightly/transmute-mut-src-dst-unsized.stderr
+++ b/tests/ui-nightly/transmute-mut-src-dst-unsized.stderr
@@ -192,7 +192,7 @@ error[E0277]: the size for values of type `[u8]` cannot be known at compilation
    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[u8]`
-note: required by an implicit `Sized` bound in `transmute`
+note: required by an implicit `Sized` bound in `std::intrinsics::transmute`
   --> $RUST/core/src/intrinsics.rs
    |
    |     pub fn transmute<Src, Dst>(src: Src) -> Dst;
diff --git a/tests/ui-nightly/transmute-ref-dst-unsized.stderr b/tests/ui-nightly/transmute-ref-dst-unsized.stderr
index 1e97b5b0ef..5ad315c477 100644
--- a/tests/ui-nightly/transmute-ref-dst-unsized.stderr
+++ b/tests/ui-nightly/transmute-ref-dst-unsized.stderr
@@ -47,7 +47,7 @@ error[E0277]: the size for values of type `[u8]` cannot be known at compilation
    |                            ^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[u8]`
-note: required by an implicit `Sized` bound in `transmute`
+note: required by an implicit `Sized` bound in `std::intrinsics::transmute`
   --> $RUST/core/src/intrinsics.rs
    |
    |     pub fn transmute<Src, Dst>(src: Src) -> Dst;
diff --git a/tests/ui-nightly/transmute-ref-src-dst-unsized.stderr b/tests/ui-nightly/transmute-ref-src-dst-unsized.stderr
index cb1e443ac1..7b4ec90ae4 100644
--- a/tests/ui-nightly/transmute-ref-src-dst-unsized.stderr
+++ b/tests/ui-nightly/transmute-ref-src-dst-unsized.stderr
@@ -144,7 +144,7 @@ error[E0277]: the size for values of type `[u8]` cannot be known at compilation
    |                                ^^^^^^^^^^^^^^^^^^^^^^^^^^ doesn't have a size known at compile-time
    |
    = help: the trait `Sized` is not implemented for `[u8]`
-note: required by an implicit `Sized` bound in `transmute`
+note: required by an implicit `Sized` bound in `std::intrinsics::transmute`
   --> $RUST/core/src/intrinsics.rs
    |
    |     pub fn transmute<Src, Dst>(src: Src) -> Dst;