Auto merge of #44008 - RalfJung:staged1, r=alexcrichton

Make sure crates not opting in to staged_api don't use staged_api

This also fixes the problem that with `-Zforce-unstable-if-unmarked` set, crates could not use `#[deprecated]`.

If you prefer, I can instead submit another version which just fixes this problem, but still allows the staged API attributes for all crates when  `-Zforce-unstable-if-unmarked` is set. I have prepared that at <https://github.com/RalfJung/rust/tree/staged2>. As yet another alternative, @alexcrichton suggested to turn this error into a lint, but that seems to be much more work, so is it worth it?

Cc @alexcrichton #43975

1 files changed, 1 insertions, 0 deletions

diff --git a/src/libtest/lib.rs b/src/libtest/lib.rs
index 5451ec24aa8..5e34688f8cb 100644
--- a/src/libtest/lib.rs
+++ b/src/libtest/lib.rs
@@ -37,6 +37,7 @@
 #![feature(libc)]
 #![feature(set_stdio)]
 #![feature(panic_unwind)]
+#![feature(staged_api)]
 
 extern crate getopts;
 extern crate term;