huskies: merge 978

crates/source-map-gen/src/rust_adapter.rs

@@ -8,7 +8,7 @@
 use std::fs;
 use std::path::Path;
 
-use crate::{CheckFailure, CheckResult, LanguageAdapter};
+use crate::{CheckFailure, CheckResult, LanguageAdapter, relative_key};
 
 /// Rust documentation coverage adapter.
 pub struct RustAdapter;
@@ -79,10 +79,11 @@ impl LanguageAdapter for RustAdapter {
         &self,
         passing_files: &[&Path],
         source_map_path: &Path,
+        root: Option<&Path>,
     ) -> Result<(), String> {
         let mut map = crate::read_map(source_map_path)?;
         for &file in passing_files {
-            let key = file.to_string_lossy().to_string();
+            let key = relative_key(file, root);
             let items: Vec<serde_json::Value> = Self::extract_items(file)
                 .into_iter()
                 .map(serde_json::Value::String)