Update feature gate issue

Author: varkor

compiler/rustc_feature/src/active.rs

@@ -611,9 +611,7 @@ declare_features! (
     (active, unsized_fn_params, "1.49.0", Some(48055), None),
 
     /// Allows the use of destructuring assignments.
-    /// The current issue reference refers to the rust-lang/rfcs issue. This will be changed to a
-    /// valid rust-lang/rust issue when the accompanying RFC is accepted.
-    (active, destructuring_assignment, "1.49.0", Some(372), None),
+    (active, destructuring_assignment, "1.49.0", Some(71126), None),
 
     // -------------------------------------------------------------------------
     // feature-group-end: actual feature gates

src/test/ui/bad/bad-expr-lhs.stderr

@@ -22,7 +22,7 @@ LL |     (1, 2) = (3, 4);
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error[E0070]: invalid left-hand side of assignment
@@ -49,7 +49,7 @@ LL |     (a, b) = (3, 4);
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error[E0070]: invalid left-hand side of assignment

src/test/ui/destructuring-assignment/note-unsupported.stderr

@@ -12,7 +12,7 @@ LL |     (a, b) = (3, 4);
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error[E0368]: binary assignment operation `+=` cannot be applied to type `({integer}, {integer})`
@@ -39,7 +39,7 @@ LL |     [a, b] = [3, 4];
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error[E0368]: binary assignment operation `+=` cannot be applied to type `[{integer}; 2]`
@@ -66,7 +66,7 @@ LL |     S { x: a, y: b } = s;
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error[E0368]: binary assignment operation `+=` cannot be applied to type `S`
@@ -95,7 +95,7 @@ LL |     S { x: a, ..s } = S { x: 3, y: 4 };
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error[E0658]: destructuring assignments are unstable
@@ -106,7 +106,7 @@ LL |     ((a, b), c) = ((3, 4), 5);
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error: aborting due to 12 previous errors

src/test/ui/feature-gates/feature-gate-destructuring_assignment.stderr

@@ -6,7 +6,7 @@ LL |     (a, b) = (2, 3);
    |     |
    |     cannot assign to this expression
    |
-   = note: see issue #372 <https://github.com/rust-lang/rust/issues/372> for more information
+   = note: see issue #71126 <https://github.com/rust-lang/rust/issues/71126> for more information
    = help: add `#![feature(destructuring_assignment)]` to the crate attributes to enable
 
 error: aborting due to previous error