treefmt v2.5.0traversed 28 files
emitted 17 files for processing
formatted 17 files (7 changed) in 1.641s
 M src/instantiate.rs
diff --git a/src/instantiate.rs b/src/instantiate.rs
index 45937c0..256d4e9 100644
--- a/src/instantiate.rs
+++ b/src/instantiate.rs
@@ -220,18 +220,28 @@ mod tests {
     fn build_flake_expression_single_attr_has_resolution_logic() {
         let expr = build_flake_expression("/nix/store/x", "sha256-abc", "samba");
         // Must contain all three fallback branches.
-        assert!(expr.contains("f ? samba"), "missing top-level check: {expr}");
-        assert!(expr.contains("f ? packages"), "missing packages branch: {expr}");
+        assert!(
+            expr.contains("f ? samba"),
+            "missing top-level check: {expr}"
+        );
+        assert!(
+            expr.contains("f ? packages"),
+            "missing packages branch: {expr}"
+        );
         assert!(
             expr.contains("f ? legacyPackages"),
             "missing legacyPackages branch: {expr}"
         );
-        assert!(expr.contains("builtins.currentSystem"), "missing system: {expr}");
+        assert!(
+            expr.contains("builtins.currentSystem"),
+            "missing system: {expr}"
+        );
     }
 
     #[test]
     fn build_flake_expression_dotted_attr_is_verbatim() {
-        let expr = build_flake_expression("/nix/store/x", "sha256-abc", "packages.x86_64-linux.samba");
+        let expr =
+            build_flake_expression("/nix/store/x", "sha256-abc", "packages.x86_64-linux.samba");
         // Fully-qualified path must be embedded verbatim; no resolution wrapper.
         assert!(
             expr.contains("packages.x86_64-linux.samba"),