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Rollup merge of #99573 - tbodt:stabilize-backtrace, r=yaahc

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Stabilize backtrace

This PR stabilizes the std::backtrace module. As of #99431, the std::Error::backtrace item has been removed, and so the rest of the backtrace feature is set to be stabilized.

Previous discussion can be found in #72981, #3156.

Stabilized API summary:
```rust
pub mod std {
    pub mod backtrace {
        pub struct Backtrace { }
        pub enum BacktraceStatus {
            Unsupported,
            Disabled,
            Captured,
        }
        impl fmt::Debug for Backtrace {}
        impl Backtrace {
            pub fn capture() -> Backtrace;
            pub fn force_capture() -> Backtrace;
            pub const fn disabled() -> Backtrace;
            pub fn status(&self) -> BacktraceStatus;
        }
        impl fmt::Display for Backtrace {}
    }
}
```

`@yaahc`
This commit is contained in:
Matthias Krüger 2022-08-10 07:21:33 +02:00 • committed by GitHub
commit e10f924e27
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7 changed files with 11 additions and 15 deletions
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compiler/rustc_errors/src/lib.rs
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@ -4,7 +4,6 @@
#![doc(html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/")]
#![feature(drain_filter)]
#![feature(backtrace)]
#![feature(if_let_guard)]
#![cfg_attr(bootstrap, feature(let_chains))]
#![feature(let_else)]