From 2d89027fac84d7ba95cf2d66b49136d3f0d08ba2 Mon Sep 17 00:00:00 2001 From: Oli Scherer Date: Wed, 23 Nov 2022 14:41:06 +0000 Subject: [PATCH] Make the test actually emit the future incompat lint --- compiler/rustc_lint_defs/src/builtin.rs | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/compiler/rustc_lint_defs/src/builtin.rs b/compiler/rustc_lint_defs/src/builtin.rs index 848906e29d5b..33cb35e60ebb 100644 --- a/compiler/rustc_lint_defs/src/builtin.rs +++ b/compiler/rustc_lint_defs/src/builtin.rs @@ -1026,10 +1026,11 @@ declare_lint! { /// ### Example /// /// ```rust,compile_fail + /// #![feature(const_ptr_read)] /// const FOO: () = unsafe { - /// let x = [0_u8; 10]; - /// let y = x.as_ptr() as *const u32; - /// *y; // the address of a `u8` array is unknown and thus we don't know if + /// let x = &[0_u8; 4]; + /// let y = x.as_ptr().cast::(); + /// y.read(); // the address of a `u8` array is unknown and thus we don't know if /// // it is aligned enough for reading a `u32`. /// }; /// ```