2 files changed, 5 insertions, 3 deletions
diff --git a/compiler/rustc_errors/Cargo.toml b/compiler/rustc_errors/Cargo.toml
index a2d1fd2a924..cc114fdcd8c 100644
--- a/compiler/rustc_errors/Cargo.toml
+++ b/compiler/rustc_errors/Cargo.toml
@@ -30,7 +30,7 @@ unicode-width = "0.1.4"
 # tidy-alphabetical-end
 
 [target.'cfg(windows)'.dependencies.windows]
-version = "0.48.0"
+version = "0.52.0"
 features = [
     "Win32_Foundation",
     "Win32_Security",
diff --git a/compiler/rustc_errors/src/lock.rs b/compiler/rustc_errors/src/lock.rs
index bd5cf49b56b..0aeb511214b 100644
--- a/compiler/rustc_errors/src/lock.rs
+++ b/compiler/rustc_errors/src/lock.rs
@@ -27,7 +27,8 @@ pub fn acquire_global_lock(name: &str) -> Box<dyn Any> {
     impl Drop for Handle {
         fn drop(&mut self) {
             unsafe {
-                CloseHandle(self.0);
+                // FIXME can panic here
+                CloseHandle(self.0).unwrap();
             }
         }
     }
@@ -37,7 +38,8 @@ pub fn acquire_global_lock(name: &str) -> Box<dyn Any> {
     impl Drop for Guard {
         fn drop(&mut self) {
             unsafe {
-                ReleaseMutex((self.0).0);
+                // FIXME can panic here
+                ReleaseMutex((self.0).0).unwrap();
             }
         }
     }