New cargo layout

CHANGELOG.md

@@ -11,6 +11,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+### Changed
+
+## [0.30.5] - 2026-05-04
+
+### Added
+
+- Added support for Cargo's new `build-dir` layout
+
+### Fixed
+
 - Update the help string in CLI to include new flags
 
 ### Changed

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ui_test"
-version = "0.30.4"
+version = "0.30.5"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "A test framework for testing rustc diagnostics output"

src/dependencies.rs

@@ -185,9 +185,16 @@ fn build_dependencies_inner(
                         filename.pop();
                         // We also validate that the path looks as expected before we actually skip.
                         if filename.file_name().unwrap_or_default() != "deps" {
-                            // Either cargo changed or this is a weird corner case, let's just
-                            // keep it.
-                            break 'skip_crate false;
+                            // Check if the new Cargo build-dir v2 layout is enabled
+                            if filename.file_name().unwrap_or_default() == "out" {
+                                filename.pop(); // `out`
+                                filename.pop(); // `<hash>`
+                                filename.pop(); // `<pkgname>`
+                            } else {
+                                // Either cargo changed or this is a weird corner case, let's just
+                                // keep it.
+                                break 'skip_crate false;
+                            }
                         }
                         filename.pop();
                         // This is the profile name, `debug` or `release` or so.