diff options
| -rw-r--r-- | library/std/src/lib.rs | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/library/std/src/lib.rs b/library/std/src/lib.rs index 2d7a9b7ce33..ac475b5530a 100644 --- a/library/std/src/lib.rs +++ b/library/std/src/lib.rs @@ -214,7 +214,16 @@ //! [slice]: prim@slice #![cfg_attr(not(feature = "restricted-std"), stable(feature = "rust1", since = "1.0.0"))] -#![cfg_attr(feature = "restricted-std", unstable(feature = "restricted_std", issue = "none"))] +#![cfg_attr( + feature = "restricted-std", + unstable( + feature = "restricted_std", + issue = "none", + reason = "You have attempted to use a standard library built for a platform that it doesn't \ + know how to support. Consider building it for a known environment, disabling it with \ + `#![no_std]` or overriding this warning by enabling this feature". + ) +)] #![cfg_attr(not(bootstrap), rustc_preserve_ub_checks)] #![doc( html_playground_url = "https://play.rust-lang.org/", |