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, 13 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0647.md b/compiler/rustc_error_codes/src/error_codes/E0647.md
new file mode 100644
index 000000000..8ca6e777f
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0647.md
@@ -0,0 +1,13 @@
+The `start` function was defined with a where clause.
+
+Erroneous code example:
+
+```compile_fail,E0647
+#![feature(start)]
+
+#[start]
+fn start(_: isize, _: *const *const u8) -> isize where (): Copy {
+    //^ error: start function is not allowed to have a where clause
+    0
+}
+```