use check_region_obligations_and_report_errors in more places to avoid ICEs

2 files changed, 27 insertions, 0 deletions

diff --git a/src/test/ui/coercion/issue-53475.rs b/src/test/ui/coercion/issue-53475.rs
new file mode 100644
index 00000000000..3770c024fb9
--- /dev/null
+++ b/src/test/ui/coercion/issue-53475.rs
@@ -0,0 +1,13 @@
+#![feature(coerce_unsized)]
+
+use std::any::Any;
+use std::ops::CoerceUnsized;
+
+struct Foo<T> {
+    data: Box<T>,
+}
+
+impl<T> CoerceUnsized<Foo<dyn Any>> for Foo<T> {}
+//~^ ERROR the parameter type `T` may not live long enough
+
+fn main() {}
diff --git a/src/test/ui/coercion/issue-53475.stderr b/src/test/ui/coercion/issue-53475.stderr
new file mode 100644
index 00000000000..522c50dca95
--- /dev/null
+++ b/src/test/ui/coercion/issue-53475.stderr
@@ -0,0 +1,14 @@
+error[E0310]: the parameter type `T` may not live long enough
+  --> $DIR/issue-53475.rs:10:1
+   |
+LL | impl<T> CoerceUnsized<Foo<dyn Any>> for Foo<T> {}
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ...so that the type `T` will meet its required lifetime bounds
+   |
+help: consider adding an explicit lifetime bound...
+   |
+LL | impl<T: 'static> CoerceUnsized<Foo<dyn Any>> for Foo<T> {}
+   |       +++++++++
+
+error: aborting due to previous error
+
+For more information about this error, try `rustc --explain E0310`.