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add compatibility bullet point for fn_must_use feature warning to 1.20 release notes #44106

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add compatibility bullet point for fn_must_use feature warning to 1.20 release notes #44106

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6 changes: 5 additions & 1 deletion RELEASES.md
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Expand Up @@ -110,7 +110,10 @@ Compatibility Notes
- [Functions with `'static` in their return types will now not be as usable as
if they were using lifetime parameters instead.][42417]
- [The reimplementation of `{f32, f64}::is_sign_{negative, positive}` now
takes the sign of NaN into account where previously didn't.][42430]
takes the sign of NaN into account where previously didn't.][42430]
- [A `#[must_use]` attribute on a function, previously a no-op, will now
warn to note that this behavior will change given the unstable `fn_must_use`
feature.][43776]

[42033]: https://github.com/rust-lang/rust/pull/42033
[42155]: https://github.com/rust-lang/rust/pull/42155
Expand Down Expand Up @@ -140,6 +143,7 @@ Compatibility Notes
[43178]: https://github.com/rust-lang/rust/pull/43178
[43185]: https://github.com/rust-lang/rust/pull/43185
[43228]: https://github.com/rust-lang/rust/pull/43228
[43776]: https://github.com/rust-lang/rust/pull/43776
[cargo/3978]: https://github.com/rust-lang/cargo/pull/3978
[cargo/4214]: https://github.com/rust-lang/cargo/pull/4214
[cargo/4229]: https://github.com/rust-lang/cargo/pull/4229
Expand Down