Reproduce issue

tests/integrations/dep-fail/Cargo.stderr

@@ -0,0 +1,10 @@
+Error: tests failed
+
+Location:
+    $DIR/src/lib.rs:LL:CC
+error: test failed, to rerun pass `--test ui`
+
+Caused by:
+  process didn't exit successfully: `$DIR/target/ui/tests/integrations/dep-fail/debug/deps/ui-HASH` (exit status: 1)
+error: 1 target failed:
+    `--test ui`

tests/integrations/dep-fail/Cargo.stdout

@@ -0,0 +1,40 @@
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished 
+
+Building dependencies ... FAILED
+tests/ui/basic_test.rs ... FAILED
+
+FAILED TEST: tests/ui/basic_test.rs
+command: "\"Building dependencies\""
+
+full stderr:
+failed to compile dependencies:
+command: "$CMD" "build" "--target-dir" "$DIR/tests/integrations/dep-fail/target/ui" "--manifest-path" "tested_crate/Cargo.toml" "--target=x86_64-unknown-linux-gnu" "--message-format=json"
+stderr:
+    Blocking waiting for file lock on package cache
+   Compiling tested_crate v0.1.0-dev ($DIR/tests/integrations/dep-fail/tested_crate)
+error: could not compile `tested_crate` (lib) due to 2 previous errors
+
+
+stdout:{"reason":"compiler-message","package_id":"path+file://$DIR/tests/integrations/dep-fail/tested_crate#0.1.0-dev","manifest_path":"$DIR/tests/integrations/dep-fail/tested_crate/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"tested_crate","src_path":"$DIR/tests/integrations/dep-fail/tested_crate/src/lib.rs","edition":"2021","doc":true,"doctest":true,"test":true},"message":{"rendered":"error: this file contains an unclosed delimiter\n --> src/lib.rs:LL:CC\n  |\n1 | pub trait A {\n  |             - ^\n  |             |\n  |             unclosed delimiter\n\n","$message_type":"diagnostic","children":[],"code":null,"level":"error","message":"this file contains an unclosed delimiter","spans":[{"byte_end":13,"byte_start":12,"column_end":14,"column_start":13,"expansion":null,"file_name":"src/lib.rs","is_primary":false,"label":"unclosed delimiter","line_end":1,"line_start":1,"suggested_replacement":null,"suggestion_applicability":null,"text":[{"highlight_end":14,"highlight_start":13,"text":"pub trait A {"}]},{"byte_end":14,"byte_start":14,"column_end":15,"column_start":15,"expansion":null,"file_name":"src/lib.rs","is_primary":true,"label":null,"line_end":1,"line_start":1,"suggested_replacement":null,"suggestion_applicability":null,"text":[{"highlight_end":15,"highlight_start":15,"text":"pub trait A {"}]}]}}
+{"reason":"compiler-message","package_id":"path+file://$DIR/tests/integrations/dep-fail/tested_crate#0.1.0-dev","manifest_path":"$DIR/tests/integrations/dep-fail/tested_crate/Cargo.toml","target":{"kind":["lib"],"crate_types":["lib"],"name":"tested_crate","src_path":"$DIR/tests/integrations/dep-fail/tested_crate/src/lib.rs","edition":"2021","doc":true,"doctest":true,"test":true},"message":{"rendered":"error: aborting due to 1 previous error\n\n","$message_type":"diagnostic","children":[],"code":null,"level":"error","message":"aborting due to 1 previous error","spans":[]}}
+{"reason":"build-finished","success":false}
+
+
+Location:
+    $DIR/src/dependencies.rs:LL:CC
+full stdout:
+
+
+FAILURES:
+    tests/ui/basic_test.rs
+
+test result: FAIL. 1 failed;
+
+
+running 0 tests
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished 
+

tests/integrations/dep-fail/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "compile_test"
+version = "0.1.0"
+edition = "2021"
+
+[dev-dependencies]
+ui_test = { path = "../../.." }
+
+[[test]]
+name = "ui"
+harness = false

tests/integrations/dep-fail/tested_crate/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "tested_crate"
+version = "0.1.0-dev"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]

tests/integrations/dep-fail/tested_crate/src/lib.rs

@@ -0,0 +1 @@
+pub trait A {

tests/integrations/dep-fail/tests/ui.rs

@@ -0,0 +1,29 @@
+use ui_test::{
+    default_file_filter, default_per_file_config, dependencies::DependencyBuilder,
+    run_tests_generic, status_emitter::Text, Args, Config, OutputConflictHandling,
+};
+
+fn main() -> ui_test::Result<()> {
+    let mut config = Config {
+        output_conflict_handling: OutputConflictHandling::Ignore,
+        ..Config::rustc("tests/ui")
+    };
+    config.comment_defaults.base().set_custom(
+        "dependencies",
+        DependencyBuilder {
+            crate_manifest_path: "tested_crate/Cargo.toml".into(),
+            ..DependencyBuilder::default()
+        },
+    );
+
+    let args = Args::test()?;
+
+    config.with_args(&args);
+
+    run_tests_generic(
+        [config].into(),
+        default_file_filter,
+        default_per_file_config,
+        Text::verbose(),
+    )
+}

tests/integrations/dep-fail/tests/ui/basic_test.rs

@@ -0,0 +1 @@
+use tested_crate::A;