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, 18 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0614.md b/compiler/rustc_error_codes/src/error_codes/E0614.md
new file mode 100644
index 000000000..d0ed06ebc
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0614.md
@@ -0,0 +1,18 @@
+Attempted to dereference a variable which cannot be dereferenced.
+
+Erroneous code example:
+
+```compile_fail,E0614
+let y = 0u32;
+*y; // error: type `u32` cannot be dereferenced
+```
+
+Only types implementing `std::ops::Deref` can be dereferenced (such as `&T`).
+Example:
+
+```
+let y = 0u32;
+let x = &y;
+// So here, `x` is a `&u32`, so we can dereference it:
+*x; // ok!
+```