compiler error E0505 example compiles with 2018 edition

[gurgalex]

Taken from https://doc.rust-lang.org
Erroneous code compiles fine for E0505

A possible way to trigger E0505 in the 2018 edition

Rust version 1.32 on playground

[gurgalex]

Where are the error code examples in the repo?

[hellow554]

rust/src/librustc_mir/diagnostics.rs

Lines 1540 to 1557 in 8af675a

	E0505: r##"
	A value was moved out while it was still borrowed.
	Erroneous code example:
	```compile_fail,E0505
	struct Value {}
	fn eat(val: Value) {}
	fn main() {
	let x = Value{};
	{
	let _ref_to_val: &Value = &x;
	eat(x);
	}
	}
	```

[gurgalex]

Which part do I need to build for rustc --explain E0505 to reflect changes in rust/src/librustc_mir/diagnostics.rs?

[zackmdavis]

I think a stage 1 build should be fine? ./x.py build -i --stage 1 src/libtest