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, 15 insertions, 0 deletions

diff --git a/compiler/rustc_error_codes/src/error_codes/E0601.md b/compiler/rustc_error_codes/src/error_codes/E0601.md
new file mode 100644
index 000000000..7194b7971
--- /dev/null
+++ b/compiler/rustc_error_codes/src/error_codes/E0601.md
@@ -0,0 +1,15 @@
+No `main` function was found in a binary crate.
+
+To fix this error, add a `main` function:
+
+```
+fn main() {
+    // Your program will start here.
+    println!("Hello world!");
+}
+```
+
+If you don't know the basics of Rust, you can look at the
+[Rust Book][rust-book] to get started.
+
+[rust-book]: https://doc.rust-lang.org/book/