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Rollup merge of #67884 - anp:allow-unused-const-attr, r=oli-obk 

Fix incremental builds of core by allowing unused attribute.

I *think* that the same problem as in https://github.com/rust-lang/rust/issues/65023 was introduced by https://github.com/rust-lang/rust/pull/67657. This works around the current incrcomp issue with these attributes by allowing it here. This resolves the near-term issue for me, at least.
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Mazdak Farrokhzad 2020-01-09 00:22:08 +01:00 committed by GitHub
parent 1a0b2a5aaa 3458aba0f9
commit 11f0013378
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src/libcore/num/mod.rs
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@ -1416,6 +1416,7 @@ $EndFeature, "
```"),
#[stable(feature = "no_panic_abs", since = "1.13.0")]
#[rustc_const_stable(feature = "const_int_methods", since = "1.32.0")]
#[allow(unused_attributes)]
#[allow_internal_unstable(const_if_match)]
#[inline]
pub const fn wrapping_abs(self) -> Self {
@ -1709,6 +1710,7 @@ assert_eq!(", stringify!($SelfT), "::MIN.overflowing_neg(), (", stringify!($Self
#[inline]
#[stable(feature = "wrapping", since = "1.7.0")]
#[rustc_const_stable(feature = "const_int_methods", since = "1.32.0")]
#[allow(unused_attributes)]
#[allow_internal_unstable(const_if_match)]
pub const fn overflowing_neg(self) -> (Self, bool) {
if self == Self::min_value() {
@ -1997,6 +1999,7 @@ $EndFeature, "
```"),
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_const_stable(feature = "const_int_methods", since = "1.32.0")]
#[allow(unused_attributes)]
#[allow_internal_unstable(const_if_match)]
#[inline]
#[rustc_inherit_overflow_checks]