2 files changed, 23 insertions, 0 deletions
diff --git a/tests/ui/privacy/private-field-access-in-mutex-54062.rs b/tests/ui/privacy/private-field-access-in-mutex-54062.rs
new file mode 100644
index 00000000000..f145f9c3e52
--- /dev/null
+++ b/tests/ui/privacy/private-field-access-in-mutex-54062.rs
@@ -0,0 +1,14 @@
+use std::sync::Mutex;
+
+struct Test {
+    comps: Mutex<String>,
+}
+
+fn main() {}
+
+fn testing(test: Test) {
+    let _ = test.comps.inner.try_lock();
+    //~^ ERROR: field `inner` of struct `Mutex` is private
+}
+
+// https://github.com/rust-lang/rust/issues/54062
diff --git a/tests/ui/privacy/private-field-access-in-mutex-54062.stderr b/tests/ui/privacy/private-field-access-in-mutex-54062.stderr
new file mode 100644
index 00000000000..14244107597
--- /dev/null
+++ b/tests/ui/privacy/private-field-access-in-mutex-54062.stderr
@@ -0,0 +1,9 @@
+error[E0616]: field `inner` of struct `Mutex` is private
+  --> $DIR/private-field-access-in-mutex-54062.rs:10:24
+   |
+LL |     let _ = test.comps.inner.try_lock();
+   |                        ^^^^^ private field
+
+error: aborting due to 1 previous error
+
+For more information about this error, try `rustc --explain E0616`.