This changes a line that has `\n#[stable]}` to instead have `}\n#[stable]`.
The #[stable] has been before the bracket since b94bcbf56e.
This is a (very) minor change, and I have not built this locally because of my not-so-powerful machine.
These tests have all been failing spuroiusly on Windows from time to time, and
one suspicion is that the shilc thread outliving the main thread somehow causes
the problem. Switch all the tests over to using Thread::scoped instead of
Thread::spawn to see if it helps the issue.
cc #19120
Due to the CSS changes done by the previous patch to make the line numbers clickable (#20092), the sidebar became unclickable. This PR reverts the changes and adopts an alternative approach.
I'm very sorry for having broken things.
This removes the needlessly constricting bound on `intrinsics::type_Id` and `TypeId::of`. Also fixes an ICE where using bounds on type parameters in extern blocks fails to resolve the used traits.
This partially implements the feature staging described in the
[release channel RFC][rc]. It does not yet fully conform to the RFC as
written, but does accomplish its goals sufficiently for the 1.0 alpha
release.
It has three primary user-visible effects:
* On the nightly channel, use of unstable APIs generates a warning.
* On the beta channel, use of unstable APIs generates a warning.
* On the beta channel, use of feature gates generates a warning.
Code that does not trigger these warnings is considered 'stable',
modulo pre-1.0 bugs.
Disabling the warnings for unstable APIs continues to be done in the
existing (i.e. old) style, via `#[allow(...)]`, not that specified in
the RFC. I deem this marginally acceptable since any code that must do
this is not using the stable dialect of Rust.
Use of feature gates is itself gated with the new 'unstable_features'
lint, on nightly set to 'allow', and on beta 'warn'.
The attribute scheme used here corresponds to an older version of the
RFC, with the `#[staged_api]` crate attribute toggling the staging
behavior of the stability attributes, but the user impact is only
in-tree so I'm not concerned about having to make design changes later
(and I may ultimately prefer the scheme here after all, with the
`#[staged_api]` crate attribute).
Since the Rust codebase itself makes use of unstable features the
compiler and build system do a midly elaborate dance to allow it to
bootstrap while disobeying these lints (which would otherwise be
errors because Rust builds with `-D warnings`).
This patch includes one significant hack that causes a
regression. Because the `format_args!` macro emits calls to unstable
APIs it would trigger the lint. I added a hack to the lint to make it
not trigger, but this in turn causes arguments to `println!` not to be
checked for feature gates. I don't presently understand macro
expansion well enough to fix. This is bug #20661.
Closes#16678
[rc]: https://github.com/rust-lang/rfcs/blob/master/text/0507-release-channels.md
Next steps are to disable the existing out-of-tree behavior for stability attributes, and convert the remaining system to be feature-based per the RFC. During the first beta cycle we will set these lints to 'forbid'.
