diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index d2eabca59e8c..865fbf2a6c96 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -2,5 +2,5 @@
 # SPDX-License-Identifier: Apache-2.0 OR MIT
 
 [toolchain]
-channel = "nightly-2025-01-10"
+channel = "nightly-2025-01-11"
 components = ["llvm-tools", "rustc-dev", "rust-src", "rustfmt"]
diff --git a/tools/compiletest/src/runtest.rs b/tools/compiletest/src/runtest.rs
index 5439942b195e..36a83a94e23e 100644
--- a/tools/compiletest/src/runtest.rs
+++ b/tools/compiletest/src/runtest.rs
@@ -611,7 +611,7 @@ impl TestCx<'_> {
         let coverage_path = coverage_info
             .unwrap()
             .split(' ')
-            .last()
+            .next_back()
             .expect("couldn't retrieve path to the coverage results");
         PathBuf::from(coverage_path)
     }