diff --git a/tools/traceability/src/main.rs b/tools/traceability/src/main.rs
index 620b057..be76394 100644
--- a/tools/traceability/src/main.rs
+++ b/tools/traceability/src/main.rs
@@ -195,7 +195,9 @@ fn run_gestures(base: &Path, check: bool) -> Result<()> {
 fn gate(files: &[PathBuf], defined: &DefinedRequirements, cov: &Coverage) -> Result<()> {
     // A run that parsed nothing is misconfigured, not passing.
     if defined.total() == 0 {
-        bail!("no requirements parsed from docs/dev/requirements.md — misconfigured, not 0% coverage");
+        bail!(
+            "no requirements parsed from docs/dev/requirements.md — misconfigured, not 0% coverage"
+        );
     }
     if files.is_empty() {
         bail!("no source files scanned — misconfigured, not 0% coverage");