diff --git a/Cargo.lock b/Cargo.lock
index f1ea5ac..e524734 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -268,9 +268,9 @@ dependencies = [
 
 [[package]]
 name = "fastrand"
-version = "2.1.0"
+version = "2.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9fc0510504f03c51ada170672ac806f1f105a88aa97a5281117e1ddc3368e51a"
+checksum = "e8c02a5121d4ea3eb16a80748c74f5549a5665e4c21333c6098f283870fbdea6"
 
 [[package]]
 name = "float-cmp"
@@ -455,9 +455,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.36"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0fa76aaf39101c457836aec0ce2316dbdc3ab723cdda1c6bd4e6ad4208acaca7"
+checksum = "b5b9d34b8991d19d98081b46eacdd8eb58c6f2b201139f7c5f643cc155a633af"
 dependencies = [
  "proc-macro2",
 ]
@@ -523,9 +523,9 @@ checksum = "7a66a03ae7c801facd77a29370b4faec201768915ac14a721ba36f20bc9c209b"
 
 [[package]]
 name = "rustix"
-version = "0.38.34"
+version = "0.38.35"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "70dc5ec042f7a43c4a73241207cecc9873a06d45debb38b329f8541d85c2730f"
+checksum = "a85d50532239da68e9addb745ba38ff4612a242c1c7ceea689c4bc7c2f43c36f"
 dependencies = [
  "bitflags",
  "errno",
@@ -545,18 +545,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.208"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cff085d2cb684faa248efb494c39b68e522822ac0de72ccf08109abde717cfb2"
+checksum = "99fce0ffe7310761ca6bf9faf5115afbc19688edd00171d81b1bb1b116c63e09"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.208"
+version = "1.0.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "24008e81ff7613ed8e5ba0cfaf24e2c2f1e5b8a0495711e44fcd4882fca62bcf"
+checksum = "a5831b979fd7b5439637af1752d535ff49f4860c0f341d1baeb6faf0f4242170"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -571,9 +571,9 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "syn"
-version = "2.0.75"
+version = "2.0.76"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f6af063034fc1935ede7be0122941bafa9bacb949334d090b77ca98b5817c7d9"
+checksum = "578e081a14e0cefc3279b0472138c513f37b41a08d5a3cca9b6e4e8ceb6cd525"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index b9f9991..3ca0e50 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,5 +1,5 @@
 # Documentation: https://rust-lang.github.io/rustup/overrides.html#the-toolchain-file
 
 [toolchain]
-channel = "nightly-2024-07-16"
+channel = "nightly-2024-08-30"
 components = ["llvm-tools-preview", "rustc-dev", "rust-src"]
\ No newline at end of file
diff --git a/src/bin/check-deadlock/main.rs b/src/bin/check-deadlock/main.rs
index 9595d60..4c2672d 100644
--- a/src/bin/check-deadlock/main.rs
+++ b/src/bin/check-deadlock/main.rs
@@ -1,3 +1,9 @@
+// This feature gate is necessary to access the internal crates of the compiler.
+// It has existed for a long time and since the compiler internals will never be stabilized,
+// the situation will probably stay like this.
+// <https://doc.rust-lang.org/unstable-book/language-features/rustc-private.html>
+#![feature(rustc_private)]
+
 mod cargo_result;
 mod check_deadlock;
 mod cli;
diff --git a/src/utils.rs b/src/utils.rs
index 53abe76..32e8132 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -30,7 +30,7 @@ pub fn extract_def_id_of_called_function_from_operand<'tcx>(
         rustc_middle::mir::Operand::Constant(constant) => constant.ty(),
     };
     match function_type.kind() {
-        rustc_middle::ty::TyKind::FnPtr(_) => {
+        rustc_middle::ty::TyKind::FnPtr(_, _) => {
             unimplemented!(
                 "TyKind::FnPtr not implemented yet. Function pointers are present in the MIR"
             );