diff --git a/rust/hg-core/src/dirstate/dirstate_map.rs b/rust/hg-core/src/dirstate/dirstate_map.rs
--- a/rust/hg-core/src/dirstate/dirstate_map.rs
+++ b/rust/hg-core/src/dirstate/dirstate_map.rs
@@ -396,6 +396,7 @@
             return file_fold_map;
         }
         let mut new_file_fold_map = FileFoldMap::default();
+        #[cfg(not(target_os="macos"))]
         for (filename, DirstateEntry { state, .. }) in self.state_map.borrow()
         {
             if *state == EntryState::Removed {
diff --git a/rust/hg-core/src/lib.rs b/rust/hg-core/src/lib.rs
--- a/rust/hg-core/src/lib.rs
+++ b/rust/hg-core/src/lib.rs
@@ -26,11 +26,10 @@
 pub mod operations;
 pub mod utils;
 
-// Remove this to see (potential) non-artificial compile failures. MacOS
-// *should* compile, but fail to compile tests for example as of 2020-03-06
-#[cfg(not(target_os = "linux"))]
+// Remove this to see (potential) non-artificial compile failures.
+#[cfg(not(any(target_os = "linux", target_os = "macos")))]
 compile_error!(
-    "`hg-core` has only been tested on Linux and will most \
+    "`hg-core` has only been tested on Linux and macOS and will most \
      likely not behave correctly on other platforms."
 );