Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0576.md b/compiler/rustc_error_codes/src/error_codes/E0576.md
new file mode 100644
index 000000000..8eead4e7e
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0576.md
@@ -0,0 +1,22 @@
+An associated item wasn't found in the given type.
+
+Erroneous code example:
+
+```compile_fail,E0576
+trait Hello {
+    type Who;
+
+    fn hello() -> <Self as Hello>::You; // error!
+}
+```
+
+In this example, we tried to use the non-existent associated type `You` of the
+`Hello` trait. To fix this error, use an existing associated type:
+
+```
+trait Hello {
+    type Who;
+
+    fn hello() -> <Self as Hello>::Who; // ok!
+}
+```