Better logging and fix concurrency issues

crates/report/Cargo.toml

@@ -17,3 +17,6 @@ anyhow = { workspace = true }
 tracing = { workspace = true }
 serde = { workspace = true }
 serde_json = { workspace = true }
+
+[lints]
+workspace = true

crates/report/src/reporter.rs

@@ -185,8 +185,6 @@ impl Report {
         let file = File::create(&path).context(path.display().to_string())?;
         serde_json::to_writer_pretty(file, &self)?;
 
-        tracing::info!("report written to: {}", path.display());
-
         Ok(())
     }
 }