Auto merge of #94148 - matthiaskrgr:rollup-jgea68f, r=matthiaskrgr

Rollup of 7 pull requests

Successful merges:

 - #92902 (Improve the documentation of drain members)
 - #93658 (Stabilize `#[cfg(panic = "...")]`)
 - #93954 (rustdoc-json: buffer output)
 - #93979 (Add debug assertions to validate NUL terminator in c strings)
 - #93990 (pre #89862 cleanup)
 - #94006 (Use a `Field` in `ConstraintCategory::ClosureUpvar`)
 - #94086 (Fix ScalarInt to char conversion)

Failed merges:

r? `@ghost`
`@rustbot` modify labels: rollup

1 files changed, 0 insertions, 38 deletions

diff --git a/src/doc/unstable-book/src/language-features/cfg-panic.md b/src/doc/unstable-book/src/language-features/cfg-panic.md
deleted file mode 100644
index f5b73128ad6..00000000000
--- a/src/doc/unstable-book/src/language-features/cfg-panic.md
+++ /dev/null
@@ -1,38 +0,0 @@
-# `cfg_panic`
-
-The tracking issue for this feature is: [#77443]
-
-[#77443]: https://github.com/rust-lang/rust/issues/77443
-
-------------------------
-
-The `cfg_panic` feature makes it possible to execute different code
-depending on the panic strategy.
-
-Possible values at the moment are `"unwind"` or `"abort"`, although
-it is possible that new panic strategies may be added to Rust in the
-future.
-
-## Examples
-
-```rust
-#![feature(cfg_panic)]
-
-#[cfg(panic = "unwind")]
-fn a() {
-    // ...
-}
-
-#[cfg(not(panic = "unwind"))]
-fn a() {
-    // ...
-}
-
-fn b() {
-    if cfg!(panic = "abort") {
-        // ...
-    } else {
-        // ...
-    }
-}
-```