From dc0db358abe19481e475e10c32149b53370f1a1c Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 30 May 2024 05:57:31 +0200
Subject: Merging upstream version 1.72.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/ui/for/issue-20605.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 tests/ui/for/issue-20605.rs

(limited to 'tests/ui/for/issue-20605.rs')

diff --git a/tests/ui/for/issue-20605.rs b/tests/ui/for/issue-20605.rs
new file mode 100644
index 000000000..50d4c3fdd
--- /dev/null
+++ b/tests/ui/for/issue-20605.rs
@@ -0,0 +1,20 @@
+// revisions: current next
+//[next] compile-flags: -Ztrait-solver=next
+
+fn changer<'a>(mut things: Box<dyn Iterator<Item=&'a mut u8>>) {
+    for item in *things { *item = 0 }
+    //[current]~^ ERROR the size for values of type
+    //[next]~^^ ERROR the trait bound `dyn Iterator<Item = &'a mut u8>: IntoIterator` is not satisfied
+    //[next]~| ERROR the size for values of type `<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter` cannot be known at compilation time
+    //[next]~| ERROR the type `<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter` is not well-formed
+    //[next]~| ERROR `<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter` is not an iterator
+    //[next]~| ERROR the type `&mut <dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter` is not well-formed
+    //[next]~| ERROR the size for values of type `<<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter as Iterator>::Item` cannot be known at compilation time
+    //[next]~| ERROR the type `Option<<<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter as Iterator>::Item>` is not well-formed
+    //[next]~| ERROR the size for values of type `<<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter as Iterator>::Item` cannot be known at compilation time
+    //[next]~| ERROR type `<<dyn Iterator<Item = &'a mut u8> as IntoIterator>::IntoIter as Iterator>::Item` cannot be dereferenced
+    // FIXME(-Ztrait-solver=next): these error messages are horrible and have to be
+    // improved before we stabilize the new solver.
+}
+
+fn main() {}
-- 
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