@@ -73,7 +73,7 @@ use crate::marker::Tuple;
7373#[ fundamental]   // so that regex can rely that `&str: !FnMut` 
7474#[ must_use = "closures are lazy and do nothing unless called" ]  
7575#[ const_trait]  
76- #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
76+ #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
7777pub  trait  Fn < Args :  Tuple > :  FnMut < Args >  { 
7878    /// Performs the call operation. 
7979#[ unstable( feature = "fn_traits" ,  issue = "29625" ) ]  
@@ -161,7 +161,7 @@ pub trait Fn<Args: Tuple>: FnMut<Args> {
161161#[ fundamental]   // so that regex can rely that `&str: !FnMut` 
162162#[ must_use = "closures are lazy and do nothing unless called" ]  
163163#[ const_trait]  
164- #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
164+ #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
165165pub  trait  FnMut < Args :  Tuple > :  FnOnce < Args >  { 
166166    /// Performs the call operation. 
167167#[ unstable( feature = "fn_traits" ,  issue = "29625" ) ]  
@@ -241,7 +241,7 @@ pub trait FnMut<Args: Tuple>: FnOnce<Args> {
241241#[ fundamental]   // so that regex can rely that `&str: !FnMut` 
242242#[ must_use = "closures are lazy and do nothing unless called" ]  
243243#[ const_trait]  
244- #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
244+ #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
245245pub  trait  FnOnce < Args :  Tuple >  { 
246246    /// The returned type after the call operator is used. 
247247#[ lang = "fn_once_output" ]  
@@ -257,7 +257,7 @@ mod impls {
257257    use  crate :: marker:: Tuple ; 
258258
259259    #[ stable( feature = "rust1" ,  since = "1.0.0" ) ]  
260-     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
260+     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
261261    impl < A :  Tuple ,  F :  ?Sized >  const  Fn < A >  for  & F 
262262    where 
263263        F :  ~const  Fn < A > , 
@@ -268,7 +268,7 @@ mod impls {
268268    } 
269269
270270    #[ stable( feature = "rust1" ,  since = "1.0.0" ) ]  
271-     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
271+     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
272272    impl < A :  Tuple ,  F :  ?Sized >  const  FnMut < A >  for  & F 
273273    where 
274274        F :  ~const  Fn < A > , 
@@ -279,7 +279,7 @@ mod impls {
279279    } 
280280
281281    #[ stable( feature = "rust1" ,  since = "1.0.0" ) ]  
282-     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
282+     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
283283    impl < A :  Tuple ,  F :  ?Sized >  const  FnOnce < A >  for  & F 
284284    where 
285285        F :  ~const  Fn < A > , 
@@ -292,7 +292,7 @@ mod impls {
292292    } 
293293
294294    #[ stable( feature = "rust1" ,  since = "1.0.0" ) ]  
295-     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
295+     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
296296    impl < A :  Tuple ,  F :  ?Sized >  const  FnMut < A >  for  & mut  F 
297297    where 
298298        F :  ~const  FnMut < A > , 
@@ -303,7 +303,7 @@ mod impls {
303303    } 
304304
305305    #[ stable( feature = "rust1" ,  since = "1.0.0" ) ]  
306-     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "67792 " ) ]  
306+     #[ rustc_const_unstable( feature = "const_trait_impl" ,  issue = "143874 " ) ]  
307307    impl < A :  Tuple ,  F :  ?Sized >  const  FnOnce < A >  for  & mut  F 
308308    where 
309309        F :  ~const  FnMut < A > , 
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