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, 21 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0585.md b/compiler/rustc_error_codes/src/error_codes/E0585.md
new file mode 100644
index 000000000..de27cc19d
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0585.md
@@ -0,0 +1,21 @@
+A documentation comment that doesn't document anything was found.
+
+Erroneous code example:
+
+```compile_fail,E0585
+fn main() {
+    // The following doc comment will fail:
+    /// This is a useless doc comment!
+}
+```
+
+Documentation comments need to be followed by items, including functions,
+types, modules, etc. Examples:
+
+```
+/// I'm documenting the following struct:
+struct Foo;
+
+/// I'm documenting the following function:
+fn foo() {}
+```