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authorRalf Jung <post@ralfj.de>2020-04-22 10:21:32 +0200
committerRalf Jung <post@ralfj.de>2020-05-09 14:40:17 +0200
commit6a8cf4a17c2d2b3daca27e787f4154e233ab4545 (patch)
treefdc17050f26e39fb14dac3294879085b1074de15 /src
parent1fce20340a6422b5e1f9738b82a304c4c389171c (diff)
downloadrust-6a8cf4a17c2d2b3daca27e787f4154e233ab4545.tar.gz
rust-6a8cf4a17c2d2b3daca27e787f4154e233ab4545.zip
adjust tests
Diffstat (limited to 'src')
-rw-r--r--src/test/incremental/const-generics/issue-62536.rs2
-rw-r--r--src/test/incremental/const-generics/issue-64087.rs2
-rw-r--r--src/test/ui/array-slice-vec/match_arr_unknown_len.rs2
-rw-r--r--src/test/ui/array-slice-vec/match_arr_unknown_len.stderr3
-rw-r--r--src/test/ui/associated-type-bounds/duplicate.rs2
-rw-r--r--src/test/ui/associated-type-bounds/duplicate.stderr3
-rw-r--r--src/test/ui/associated-type-bounds/dyn-lcsit.stderr3
-rw-r--r--src/test/ui/associated-type-bounds/lcsit.stderr3
-rw-r--r--src/test/ui/binding/const-param.stderr3
-rw-r--r--src/test/ui/const-generics/apit-with-const-param.rs2
-rw-r--r--src/test/ui/const-generics/apit-with-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/argument_order.rs2
-rw-r--r--src/test/ui/const-generics/argument_order.stderr3
-rw-r--r--src/test/ui/const-generics/array-size-in-generic-struct-param.rs2
-rw-r--r--src/test/ui/const-generics/array-size-in-generic-struct-param.stderr3
-rw-r--r--src/test/ui/const-generics/array-wrapper-struct-ctor.rs2
-rw-r--r--src/test/ui/const-generics/array-wrapper-struct-ctor.stderr3
-rw-r--r--src/test/ui/const-generics/broken-mir-1.rs2
-rw-r--r--src/test/ui/const-generics/broken-mir-1.stderr3
-rw-r--r--src/test/ui/const-generics/broken-mir-2.rs2
-rw-r--r--src/test/ui/const-generics/broken-mir-2.stderr3
-rw-r--r--src/test/ui/const-generics/cannot-infer-const-args.rs2
-rw-r--r--src/test/ui/const-generics/cannot-infer-const-args.stderr3
-rw-r--r--src/test/ui/const-generics/cannot-infer-type-for-const-param.rs2
-rw-r--r--src/test/ui/const-generics/cannot-infer-type-for-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/concrete-const-as-fn-arg.rs2
-rw-r--r--src/test/ui/const-generics/concrete-const-as-fn-arg.stderr3
-rw-r--r--src/test/ui/const-generics/concrete-const-impl-method.rs2
-rw-r--r--src/test/ui/const-generics/concrete-const-impl-method.stderr3
-rw-r--r--src/test/ui/const-generics/condition-in-trait-const-arg.rs2
-rw-r--r--src/test/ui/const-generics/condition-in-trait-const-arg.stderr3
-rw-r--r--src/test/ui/const-generics/const-arg-in-fn.rs2
-rw-r--r--src/test/ui/const-generics/const-arg-in-fn.stderr3
-rw-r--r--src/test/ui/const-generics/const-arg-type-arg-misordered.rs2
-rw-r--r--src/test/ui/const-generics/const-arg-type-arg-misordered.stderr3
-rw-r--r--src/test/ui/const-generics/const-expression-parameter.rs2
-rw-r--r--src/test/ui/const-generics/const-expression-parameter.stderr3
-rw-r--r--src/test/ui/const-generics/const-fn-with-const-param.rs2
-rw-r--r--src/test/ui/const-generics/const-fn-with-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/const-generic-array-wrapper.rs2
-rw-r--r--src/test/ui/const-generics/const-generic-array-wrapper.stderr3
-rw-r--r--src/test/ui/const-generics/const-generic-type_name.rs2
-rw-r--r--src/test/ui/const-generics/const-generic-type_name.stderr3
-rw-r--r--src/test/ui/const-generics/const-param-elided-lifetime.rs2
-rw-r--r--src/test/ui/const-generics/const-param-elided-lifetime.stderr3
-rw-r--r--src/test/ui/const-generics/const-param-from-outer-fn.rs2
-rw-r--r--src/test/ui/const-generics/const-param-from-outer-fn.stderr3
-rw-r--r--src/test/ui/const-generics/const-param-in-trait.rs2
-rw-r--r--src/test/ui/const-generics/const-param-in-trait.stderr3
-rw-r--r--src/test/ui/const-generics/const-param-type-depends-on-type-param.rs2
-rw-r--r--src/test/ui/const-generics/const-param-type-depends-on-type-param.stderr3
-rw-r--r--src/test/ui/const-generics/const-parameter-uppercase-lint.rs2
-rw-r--r--src/test/ui/const-generics/const-parameter-uppercase-lint.stderr3
-rw-r--r--src/test/ui/const-generics/const-types.rs2
-rw-r--r--src/test/ui/const-generics/const-types.stderr3
-rw-r--r--src/test/ui/const-generics/derive-debug-array-wrapper.rs2
-rw-r--r--src/test/ui/const-generics/derive-debug-array-wrapper.stderr3
-rw-r--r--src/test/ui/const-generics/different_byref.rs2
-rw-r--r--src/test/ui/const-generics/different_byref.stderr3
-rw-r--r--src/test/ui/const-generics/fn-const-param-call.rs2
-rw-r--r--src/test/ui/const-generics/fn-const-param-call.stderr3
-rw-r--r--src/test/ui/const-generics/fn-const-param-infer.rs2
-rw-r--r--src/test/ui/const-generics/fn-const-param-infer.stderr3
-rw-r--r--src/test/ui/const-generics/fn-taking-const-generic-array.rs2
-rw-r--r--src/test/ui/const-generics/fn-taking-const-generic-array.stderr3
-rw-r--r--src/test/ui/const-generics/forbid-non-structural_match-types.rs2
-rw-r--r--src/test/ui/const-generics/forbid-non-structural_match-types.stderr3
-rw-r--r--src/test/ui/const-generics/foreign-item-const-parameter.rs2
-rw-r--r--src/test/ui/const-generics/foreign-item-const-parameter.stderr3
-rw-r--r--src/test/ui/const-generics/impl-const-generic-struct.rs2
-rw-r--r--src/test/ui/const-generics/impl-const-generic-struct.stderr3
-rw-r--r--src/test/ui/const-generics/incorrect-number-of-const-args.rs2
-rw-r--r--src/test/ui/const-generics/incorrect-number-of-const-args.stderr3
-rw-r--r--src/test/ui/const-generics/infer_arg_from_pat.rs2
-rw-r--r--src/test/ui/const-generics/infer_arg_from_pat.stderr3
-rw-r--r--src/test/ui/const-generics/infer_arr_len_from_pat.rs2
-rw-r--r--src/test/ui/const-generics/infer_arr_len_from_pat.stderr3
-rw-r--r--src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.rs2
-rw-r--r--src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.stderr3
-rw-r--r--src/test/ui/const-generics/issue-61522-array-len-succ.rs2
-rw-r--r--src/test/ui/const-generics/issue-61522-array-len-succ.stderr3
-rw-r--r--src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.rs2
-rw-r--r--src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-60818-struct-constructors.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-61336-1.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-61336-1.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-61336-2.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-61336-2.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-61336.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-61336.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-61422.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-61422.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-61432.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-61432.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-61747.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-61747.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-62456.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-62456.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-62579-no-match.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-62579-no-match.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-63322-forbid-dyn.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-63322-forbid-dyn.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-64519.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-64519.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-66906.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-66906.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-70125-1.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-70125-1.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-70125-2.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-70125-2.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue-70167.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue-70167.stderr3
-rw-r--r--src/test/ui/const-generics/issues/issue70273-assoc-fn.rs2
-rw-r--r--src/test/ui/const-generics/issues/issue70273-assoc-fn.stderr3
-rw-r--r--src/test/ui/const-generics/mut-ref-const-param-array.rs2
-rw-r--r--src/test/ui/const-generics/mut-ref-const-param-array.stderr3
-rw-r--r--src/test/ui/const-generics/raw-ptr-const-param-deref.rs2
-rw-r--r--src/test/ui/const-generics/raw-ptr-const-param-deref.stderr3
-rw-r--r--src/test/ui/const-generics/raw-ptr-const-param.rs2
-rw-r--r--src/test/ui/const-generics/raw-ptr-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/slice-const-param-mismatch.rs2
-rw-r--r--src/test/ui/const-generics/slice-const-param-mismatch.stderr3
-rw-r--r--src/test/ui/const-generics/slice-const-param.rs2
-rw-r--r--src/test/ui/const-generics/slice-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/struct-with-invalid-const-param.rs2
-rw-r--r--src/test/ui/const-generics/struct-with-invalid-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/transparent-maybeunit-array-wrapper.rs2
-rw-r--r--src/test/ui/const-generics/transparent-maybeunit-array-wrapper.stderr3
-rw-r--r--src/test/ui/const-generics/type_of_anon_const.rs2
-rw-r--r--src/test/ui/const-generics/type_of_anon_const.stderr3
-rw-r--r--src/test/ui/const-generics/types-mismatch-const-args.rs2
-rw-r--r--src/test/ui/const-generics/types-mismatch-const-args.stderr3
-rw-r--r--src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs2
-rw-r--r--src/test/ui/const-generics/uninferred-consts-during-codegen-1.stderr3
-rw-r--r--src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs2
-rw-r--r--src/test/ui/const-generics/uninferred-consts-during-codegen-2.stderr3
-rw-r--r--src/test/ui/const-generics/unused-const-param.rs2
-rw-r--r--src/test/ui/const-generics/unused-const-param.stderr3
-rw-r--r--src/test/ui/const-generics/unused_braces.rs2
-rw-r--r--src/test/ui/const-generics/unused_braces.stderr3
-rw-r--r--src/test/ui/error-codes/E0730.rs2
-rw-r--r--src/test/ui/error-codes/E0730.stderr3
-rw-r--r--src/test/ui/generic-associated-types/gat-incomplete-warning.stderr3
-rw-r--r--src/test/ui/hygiene/generic_params.stderr3
-rw-r--r--src/test/ui/hygiene/issue-61574-const-parameters.stderr3
-rw-r--r--src/test/ui/if-attrs/let-chains-attr.stderr3
-rw-r--r--src/test/ui/impl-trait-in-bindings.rs2
-rw-r--r--src/test/ui/impl-trait-in-bindings.stderr3
-rw-r--r--src/test/ui/impl-trait/bindings-opaque.rs2
-rw-r--r--src/test/ui/impl-trait/bindings-opaque.stderr3
-rw-r--r--src/test/ui/impl-trait/bindings.rs2
-rw-r--r--src/test/ui/impl-trait/bindings.stderr3
-rw-r--r--src/test/ui/impl-trait/bound-normalization-fail.stderr3
-rw-r--r--src/test/ui/impl-trait/bound-normalization-pass.stderr3
-rw-r--r--src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.rs2
-rw-r--r--src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.stderr3
-rw-r--r--src/test/ui/issues/issue-59508-1.rs2
-rw-r--r--src/test/ui/issues/issue-59508-1.stderr3
-rw-r--r--src/test/ui/parser/impl-item-type-no-body-semantic-fail.stderr3
-rw-r--r--src/test/ui/resolve/issue-65035-static-with-parent-generics.rs2
-rw-r--r--src/test/ui/resolve/issue-65035-static-with-parent-generics.stderr3
-rw-r--r--src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr7
-rw-r--r--src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.rs2
-rw-r--r--src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.stderr3
-rw-r--r--src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.rs2
-rw-r--r--src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.stderr3
-rw-r--r--src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.rs2
-rw-r--r--src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.stderr3
-rw-r--r--src/test/ui/type-alias-impl-trait/assoc-type-const.rs2
-rw-r--r--src/test/ui/type-alias-impl-trait/assoc-type-const.stderr3
-rw-r--r--src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.rs2
-rw-r--r--src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.stderr3
175 files changed, 270 insertions, 176 deletions
diff --git a/src/test/incremental/const-generics/issue-62536.rs b/src/test/incremental/const-generics/issue-62536.rs
index 90e279bfc74..0eaeb910be6 100644
--- a/src/test/incremental/const-generics/issue-62536.rs
+++ b/src/test/incremental/const-generics/issue-62536.rs
@@ -1,6 +1,6 @@
 // revisions:cfail1
 #![feature(const_generics)]
-//[cfail1]~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//[cfail1]~^ WARN the feature `const_generics` is incomplete
 
 struct S<T, const N: usize>([T; N]);
 
diff --git a/src/test/incremental/const-generics/issue-64087.rs b/src/test/incremental/const-generics/issue-64087.rs
index b3c12fbb6e8..6b10c540494 100644
--- a/src/test/incremental/const-generics/issue-64087.rs
+++ b/src/test/incremental/const-generics/issue-64087.rs
@@ -1,6 +1,6 @@
 // revisions:cfail1
 #![feature(const_generics)]
-//[cfail1]~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//[cfail1]~^ WARN the feature `const_generics` is incomplete
 
 fn combinator<T, const S: usize>() -> [T; S] {}
 //[cfail1]~^ ERROR mismatched types
diff --git a/src/test/ui/array-slice-vec/match_arr_unknown_len.rs b/src/test/ui/array-slice-vec/match_arr_unknown_len.rs
index 7f3da75ddcb..45b2889f1ca 100644
--- a/src/test/ui/array-slice-vec/match_arr_unknown_len.rs
+++ b/src/test/ui/array-slice-vec/match_arr_unknown_len.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn is_123<const N: usize>(x: [u32; N]) -> bool {
     match x {
diff --git a/src/test/ui/array-slice-vec/match_arr_unknown_len.stderr b/src/test/ui/array-slice-vec/match_arr_unknown_len.stderr
index 09f65f6acd0..c94d7d245a3 100644
--- a/src/test/ui/array-slice-vec/match_arr_unknown_len.stderr
+++ b/src/test/ui/array-slice-vec/match_arr_unknown_len.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/match_arr_unknown_len.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0308]: mismatched types
   --> $DIR/match_arr_unknown_len.rs:6:9
diff --git a/src/test/ui/associated-type-bounds/duplicate.rs b/src/test/ui/associated-type-bounds/duplicate.rs
index f8d230da365..8b396f23efd 100644
--- a/src/test/ui/associated-type-bounds/duplicate.rs
+++ b/src/test/ui/associated-type-bounds/duplicate.rs
@@ -2,7 +2,7 @@
 
 #![feature(associated_type_bounds)]
 #![feature(type_alias_impl_trait)]
-#![feature(impl_trait_in_bindings)] //~ WARN the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash [incomplete_features]
+#![feature(impl_trait_in_bindings)] //~ WARN the feature `impl_trait_in_bindings` is incomplete
 #![feature(untagged_unions)]
 
 use std::iter;
diff --git a/src/test/ui/associated-type-bounds/duplicate.stderr b/src/test/ui/associated-type-bounds/duplicate.stderr
index 9f219fb7c53..71f6e4ff8b6 100644
--- a/src/test/ui/associated-type-bounds/duplicate.stderr
+++ b/src/test/ui/associated-type-bounds/duplicate.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/duplicate.rs:5:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 error[E0719]: the value of the associated type `Item` (from trait `std::iter::Iterator`) is already specified
   --> $DIR/duplicate.rs:10:36
diff --git a/src/test/ui/associated-type-bounds/dyn-lcsit.stderr b/src/test/ui/associated-type-bounds/dyn-lcsit.stderr
index 7414c148452..3637f9558be 100644
--- a/src/test/ui/associated-type-bounds/dyn-lcsit.stderr
+++ b/src/test/ui/associated-type-bounds/dyn-lcsit.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/dyn-lcsit.rs:4:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/associated-type-bounds/lcsit.stderr b/src/test/ui/associated-type-bounds/lcsit.stderr
index 8c225a30638..11ff03db361 100644
--- a/src/test/ui/associated-type-bounds/lcsit.stderr
+++ b/src/test/ui/associated-type-bounds/lcsit.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/lcsit.rs:4:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/binding/const-param.stderr b/src/test/ui/binding/const-param.stderr
index f6a80c3c7d3..316fac62325 100644
--- a/src/test/ui/binding/const-param.stderr
+++ b/src/test/ui/binding/const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-param.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0158]: const parameters cannot be referenced in patterns
   --> $DIR/const-param.rs:7:9
diff --git a/src/test/ui/const-generics/apit-with-const-param.rs b/src/test/ui/const-generics/apit-with-const-param.rs
index 7acc50819a6..f9c6e201b17 100644
--- a/src/test/ui/const-generics/apit-with-const-param.rs
+++ b/src/test/ui/const-generics/apit-with-const-param.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait Trait {}
 
diff --git a/src/test/ui/const-generics/apit-with-const-param.stderr b/src/test/ui/const-generics/apit-with-const-param.stderr
index b6b83b78d3b..4389e4738ea 100644
--- a/src/test/ui/const-generics/apit-with-const-param.stderr
+++ b/src/test/ui/const-generics/apit-with-const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/apit-with-const-param.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/argument_order.rs b/src/test/ui/const-generics/argument_order.rs
index 3446600d049..6110d16c070 100644
--- a/src/test/ui/const-generics/argument_order.rs
+++ b/src/test/ui/const-generics/argument_order.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Bad<const N: usize, T> { //~ ERROR type parameters must be declared prior
     arr: [u8; { N }],
diff --git a/src/test/ui/const-generics/argument_order.stderr b/src/test/ui/const-generics/argument_order.stderr
index 7c55cb59a22..f77ae49cf10 100644
--- a/src/test/ui/const-generics/argument_order.stderr
+++ b/src/test/ui/const-generics/argument_order.stderr
@@ -4,13 +4,14 @@ error: type parameters must be declared prior to const parameters
 LL | struct Bad<const N: usize, T> {
    |           -----------------^- help: reorder the parameters: lifetimes, then types, then consts: `<T, const N: usize>`
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/argument_order.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to previous error; 1 warning emitted
 
diff --git a/src/test/ui/const-generics/array-size-in-generic-struct-param.rs b/src/test/ui/const-generics/array-size-in-generic-struct-param.rs
index d996bf56fcc..5c02e585dc8 100644
--- a/src/test/ui/const-generics/array-size-in-generic-struct-param.rs
+++ b/src/test/ui/const-generics/array-size-in-generic-struct-param.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #[allow(dead_code)]
 struct ArithArrayLen<const N: usize>([u32; 0 + N]);
diff --git a/src/test/ui/const-generics/array-size-in-generic-struct-param.stderr b/src/test/ui/const-generics/array-size-in-generic-struct-param.stderr
index 05f30a1cc5e..14cf64eeb7a 100644
--- a/src/test/ui/const-generics/array-size-in-generic-struct-param.stderr
+++ b/src/test/ui/const-generics/array-size-in-generic-struct-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/array-size-in-generic-struct-param.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: constant expression depends on a generic parameter
   --> $DIR/array-size-in-generic-struct-param.rs:5:38
diff --git a/src/test/ui/const-generics/array-wrapper-struct-ctor.rs b/src/test/ui/const-generics/array-wrapper-struct-ctor.rs
index 2d1a405ebdd..49fc53b32bd 100644
--- a/src/test/ui/const-generics/array-wrapper-struct-ctor.rs
+++ b/src/test/ui/const-generics/array-wrapper-struct-ctor.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #![allow(dead_code)]
 
diff --git a/src/test/ui/const-generics/array-wrapper-struct-ctor.stderr b/src/test/ui/const-generics/array-wrapper-struct-ctor.stderr
index e28f65a3827..e6eb2a0a783 100644
--- a/src/test/ui/const-generics/array-wrapper-struct-ctor.stderr
+++ b/src/test/ui/const-generics/array-wrapper-struct-ctor.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/array-wrapper-struct-ctor.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/broken-mir-1.rs b/src/test/ui/const-generics/broken-mir-1.rs
index 9a11bd3d031..f137be2d6a6 100644
--- a/src/test/ui/const-generics/broken-mir-1.rs
+++ b/src/test/ui/const-generics/broken-mir-1.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub trait Foo {
     fn foo(&self);
diff --git a/src/test/ui/const-generics/broken-mir-1.stderr b/src/test/ui/const-generics/broken-mir-1.stderr
index 8b8e0fd1120..a5532bde1f5 100644
--- a/src/test/ui/const-generics/broken-mir-1.stderr
+++ b/src/test/ui/const-generics/broken-mir-1.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/broken-mir-1.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/broken-mir-2.rs b/src/test/ui/const-generics/broken-mir-2.rs
index d9a4411b4f9..c2f9b786f8f 100644
--- a/src/test/ui/const-generics/broken-mir-2.rs
+++ b/src/test/ui/const-generics/broken-mir-2.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::fmt::Debug;
 
diff --git a/src/test/ui/const-generics/broken-mir-2.stderr b/src/test/ui/const-generics/broken-mir-2.stderr
index cbb8159e9b5..e0bf039575b 100644
--- a/src/test/ui/const-generics/broken-mir-2.stderr
+++ b/src/test/ui/const-generics/broken-mir-2.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/broken-mir-2.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0277]: arrays only have std trait implementations for lengths 0..=32
   --> $DIR/broken-mir-2.rs:7:36
diff --git a/src/test/ui/const-generics/cannot-infer-const-args.rs b/src/test/ui/const-generics/cannot-infer-const-args.rs
index e1061c6d1a3..2f6ad2654c1 100644
--- a/src/test/ui/const-generics/cannot-infer-const-args.rs
+++ b/src/test/ui/const-generics/cannot-infer-const-args.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn foo<const X: usize>() -> usize {
     0
diff --git a/src/test/ui/const-generics/cannot-infer-const-args.stderr b/src/test/ui/const-generics/cannot-infer-const-args.stderr
index fc426bf4f48..6696b025855 100644
--- a/src/test/ui/const-generics/cannot-infer-const-args.stderr
+++ b/src/test/ui/const-generics/cannot-infer-const-args.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/cannot-infer-const-args.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0282]: type annotations needed
   --> $DIR/cannot-infer-const-args.rs:9:5
diff --git a/src/test/ui/const-generics/cannot-infer-type-for-const-param.rs b/src/test/ui/const-generics/cannot-infer-type-for-const-param.rs
index 303bc8326fd..aac5d195f76 100644
--- a/src/test/ui/const-generics/cannot-infer-type-for-const-param.rs
+++ b/src/test/ui/const-generics/cannot-infer-type-for-const-param.rs
@@ -1,6 +1,6 @@
 // check-pass
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 // This test confirms that the types can be inferred correctly for this example with const
 // generics. Previously this would ICE, and more recently error.
diff --git a/src/test/ui/const-generics/cannot-infer-type-for-const-param.stderr b/src/test/ui/const-generics/cannot-infer-type-for-const-param.stderr
index f273c4e9335..c5c48d7be46 100644
--- a/src/test/ui/const-generics/cannot-infer-type-for-const-param.stderr
+++ b/src/test/ui/const-generics/cannot-infer-type-for-const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/cannot-infer-type-for-const-param.rs:2:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/concrete-const-as-fn-arg.rs b/src/test/ui/const-generics/concrete-const-as-fn-arg.rs
index 54981b77a2b..18ebba49f6f 100644
--- a/src/test/ui/const-generics/concrete-const-as-fn-arg.rs
+++ b/src/test/ui/const-generics/concrete-const-as-fn-arg.rs
@@ -2,7 +2,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct A<const N: usize>; // ok
 
diff --git a/src/test/ui/const-generics/concrete-const-as-fn-arg.stderr b/src/test/ui/const-generics/concrete-const-as-fn-arg.stderr
index e83ccf9adb7..c8f3a8beaf8 100644
--- a/src/test/ui/const-generics/concrete-const-as-fn-arg.stderr
+++ b/src/test/ui/const-generics/concrete-const-as-fn-arg.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/concrete-const-as-fn-arg.rs:4:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/concrete-const-impl-method.rs b/src/test/ui/const-generics/concrete-const-impl-method.rs
index 226ea415180..c1ddf9a3314 100644
--- a/src/test/ui/const-generics/concrete-const-impl-method.rs
+++ b/src/test/ui/const-generics/concrete-const-impl-method.rs
@@ -3,7 +3,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub struct A<const N: u32>;
 
diff --git a/src/test/ui/const-generics/concrete-const-impl-method.stderr b/src/test/ui/const-generics/concrete-const-impl-method.stderr
index c9145837ea4..5edb4f4f6cd 100644
--- a/src/test/ui/const-generics/concrete-const-impl-method.stderr
+++ b/src/test/ui/const-generics/concrete-const-impl-method.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/concrete-const-impl-method.rs:5:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/condition-in-trait-const-arg.rs b/src/test/ui/const-generics/condition-in-trait-const-arg.rs
index 091fe904826..9d8aaed54bd 100644
--- a/src/test/ui/const-generics/condition-in-trait-const-arg.rs
+++ b/src/test/ui/const-generics/condition-in-trait-const-arg.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait IsZeroTrait<const IS_ZERO: bool>{}
 
diff --git a/src/test/ui/const-generics/condition-in-trait-const-arg.stderr b/src/test/ui/const-generics/condition-in-trait-const-arg.stderr
index 12a51d05f46..9ac33454128 100644
--- a/src/test/ui/const-generics/condition-in-trait-const-arg.stderr
+++ b/src/test/ui/const-generics/condition-in-trait-const-arg.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/condition-in-trait-const-arg.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-arg-in-fn.rs b/src/test/ui/const-generics/const-arg-in-fn.rs
index 3f86782838c..5ea2cf92fdc 100644
--- a/src/test/ui/const-generics/const-arg-in-fn.rs
+++ b/src/test/ui/const-generics/const-arg-in-fn.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn const_u32_identity<const X: u32>() -> u32 {
     X
diff --git a/src/test/ui/const-generics/const-arg-in-fn.stderr b/src/test/ui/const-generics/const-arg-in-fn.stderr
index 74919ba0ae7..bb66849c7fe 100644
--- a/src/test/ui/const-generics/const-arg-in-fn.stderr
+++ b/src/test/ui/const-generics/const-arg-in-fn.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-arg-in-fn.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-arg-type-arg-misordered.rs b/src/test/ui/const-generics/const-arg-type-arg-misordered.rs
index f024eb6a957..9f989ee20a5 100644
--- a/src/test/ui/const-generics/const-arg-type-arg-misordered.rs
+++ b/src/test/ui/const-generics/const-arg-type-arg-misordered.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 type Array<T, const N: usize> = [T; N];
 
diff --git a/src/test/ui/const-generics/const-arg-type-arg-misordered.stderr b/src/test/ui/const-generics/const-arg-type-arg-misordered.stderr
index 5795a492c22..ad38b632b75 100644
--- a/src/test/ui/const-generics/const-arg-type-arg-misordered.stderr
+++ b/src/test/ui/const-generics/const-arg-type-arg-misordered.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-arg-type-arg-misordered.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0747]: constant provided when a type was expected
   --> $DIR/const-arg-type-arg-misordered.rs:6:35
diff --git a/src/test/ui/const-generics/const-expression-parameter.rs b/src/test/ui/const-generics/const-expression-parameter.rs
index 22c6c351622..e0b66a7c14c 100644
--- a/src/test/ui/const-generics/const-expression-parameter.rs
+++ b/src/test/ui/const-generics/const-expression-parameter.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn i32_identity<const X: i32>() -> i32 {
     5
diff --git a/src/test/ui/const-generics/const-expression-parameter.stderr b/src/test/ui/const-generics/const-expression-parameter.stderr
index 6784aeebf0f..e421c22be01 100644
--- a/src/test/ui/const-generics/const-expression-parameter.stderr
+++ b/src/test/ui/const-generics/const-expression-parameter.stderr
@@ -4,13 +4,14 @@ error: expected one of `,` or `>`, found `+`
 LL |     i32_identity::<1 + 2>();
    |                      ^ expected one of `,` or `>`
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-expression-parameter.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to previous error; 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-fn-with-const-param.rs b/src/test/ui/const-generics/const-fn-with-const-param.rs
index 3d8b77bcf7b..bbc55815e9a 100644
--- a/src/test/ui/const-generics/const-fn-with-const-param.rs
+++ b/src/test/ui/const-generics/const-fn-with-const-param.rs
@@ -1,6 +1,6 @@
 // run-pass
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 const fn const_u32_identity<const X: u32>() -> u32 {
     X
diff --git a/src/test/ui/const-generics/const-fn-with-const-param.stderr b/src/test/ui/const-generics/const-fn-with-const-param.stderr
index 64b9c18a8f5..109b5002848 100644
--- a/src/test/ui/const-generics/const-fn-with-const-param.stderr
+++ b/src/test/ui/const-generics/const-fn-with-const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-fn-with-const-param.rs:2:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-generic-array-wrapper.rs b/src/test/ui/const-generics/const-generic-array-wrapper.rs
index 56a58c582f6..3e43387163b 100644
--- a/src/test/ui/const-generics/const-generic-array-wrapper.rs
+++ b/src/test/ui/const-generics/const-generic-array-wrapper.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Foo<T, const N: usize>([T; N]);
 
diff --git a/src/test/ui/const-generics/const-generic-array-wrapper.stderr b/src/test/ui/const-generics/const-generic-array-wrapper.stderr
index 1d05381b59b..47448bbd19d 100644
--- a/src/test/ui/const-generics/const-generic-array-wrapper.stderr
+++ b/src/test/ui/const-generics/const-generic-array-wrapper.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-generic-array-wrapper.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-generic-type_name.rs b/src/test/ui/const-generics/const-generic-type_name.rs
index 469843d6aae..22f9bd2a0f0 100644
--- a/src/test/ui/const-generics/const-generic-type_name.rs
+++ b/src/test/ui/const-generics/const-generic-type_name.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #[derive(Debug)]
 struct S<const N: usize>;
diff --git a/src/test/ui/const-generics/const-generic-type_name.stderr b/src/test/ui/const-generics/const-generic-type_name.stderr
index 641b868dcb2..f161739c9c8 100644
--- a/src/test/ui/const-generics/const-generic-type_name.stderr
+++ b/src/test/ui/const-generics/const-generic-type_name.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-generic-type_name.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-param-elided-lifetime.rs b/src/test/ui/const-generics/const-param-elided-lifetime.rs
index 5679dd35c30..5e6b6c4dabe 100644
--- a/src/test/ui/const-generics/const-param-elided-lifetime.rs
+++ b/src/test/ui/const-generics/const-param-elided-lifetime.rs
@@ -4,7 +4,7 @@
 // lifetimes within const/static items.
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct A<const N: &u8>;
 //~^ ERROR `&` without an explicit lifetime name cannot be used here
diff --git a/src/test/ui/const-generics/const-param-elided-lifetime.stderr b/src/test/ui/const-generics/const-param-elided-lifetime.stderr
index edc26d6348c..8c50fb73679 100644
--- a/src/test/ui/const-generics/const-param-elided-lifetime.stderr
+++ b/src/test/ui/const-generics/const-param-elided-lifetime.stderr
@@ -28,13 +28,14 @@ error[E0637]: `&` without an explicit lifetime name cannot be used here
 LL | fn bar<const N: &u8>() {}
    |                 ^ explicit lifetime name needed here
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-param-elided-lifetime.rs:6:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to 5 previous errors; 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-param-from-outer-fn.rs b/src/test/ui/const-generics/const-param-from-outer-fn.rs
index 6534bcf5ce6..4b8e2db7233 100644
--- a/src/test/ui/const-generics/const-param-from-outer-fn.rs
+++ b/src/test/ui/const-generics/const-param-from-outer-fn.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn foo<const X: u32>() {
     fn bar() -> u32 {
diff --git a/src/test/ui/const-generics/const-param-from-outer-fn.stderr b/src/test/ui/const-generics/const-param-from-outer-fn.stderr
index a03ba080900..30bd1d72914 100644
--- a/src/test/ui/const-generics/const-param-from-outer-fn.stderr
+++ b/src/test/ui/const-generics/const-param-from-outer-fn.stderr
@@ -8,13 +8,14 @@ LL |     fn bar() -> u32 {
 LL |         X
    |         ^ use of generic parameter from outer function
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-param-from-outer-fn.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to previous error; 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-param-in-trait.rs b/src/test/ui/const-generics/const-param-in-trait.rs
index 6e4f65fe6ca..68740725711 100644
--- a/src/test/ui/const-generics/const-param-in-trait.rs
+++ b/src/test/ui/const-generics/const-param-in-trait.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait Trait<const T: ()> {}
 
diff --git a/src/test/ui/const-generics/const-param-in-trait.stderr b/src/test/ui/const-generics/const-param-in-trait.stderr
index 6afbce67e33..a2e367b25ad 100644
--- a/src/test/ui/const-generics/const-param-in-trait.stderr
+++ b/src/test/ui/const-generics/const-param-in-trait.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-param-in-trait.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/const-param-type-depends-on-type-param.rs b/src/test/ui/const-generics/const-param-type-depends-on-type-param.rs
index 7468020366c..654e36df37e 100644
--- a/src/test/ui/const-generics/const-param-type-depends-on-type-param.rs
+++ b/src/test/ui/const-generics/const-param-type-depends-on-type-param.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 // Currently, const parameters cannot depend on type parameters, because there is no way to
 // enforce the structural-match property on an arbitrary type parameter. This restriction
diff --git a/src/test/ui/const-generics/const-param-type-depends-on-type-param.stderr b/src/test/ui/const-generics/const-param-type-depends-on-type-param.stderr
index 9f20b06813e..ed05264161e 100644
--- a/src/test/ui/const-generics/const-param-type-depends-on-type-param.stderr
+++ b/src/test/ui/const-generics/const-param-type-depends-on-type-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-param-type-depends-on-type-param.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0741]: `T` is not guaranteed to `#[derive(PartialEq, Eq)]`, so may not be used as the type of a const parameter
   --> $DIR/const-param-type-depends-on-type-param.rs:9:34
diff --git a/src/test/ui/const-generics/const-parameter-uppercase-lint.rs b/src/test/ui/const-generics/const-parameter-uppercase-lint.rs
index 164205dd75c..54a33e21812 100644
--- a/src/test/ui/const-generics/const-parameter-uppercase-lint.rs
+++ b/src/test/ui/const-generics/const-parameter-uppercase-lint.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #![deny(non_upper_case_globals)]
 
diff --git a/src/test/ui/const-generics/const-parameter-uppercase-lint.stderr b/src/test/ui/const-generics/const-parameter-uppercase-lint.stderr
index 826dc702c0d..b7febed7bdd 100644
--- a/src/test/ui/const-generics/const-parameter-uppercase-lint.stderr
+++ b/src/test/ui/const-generics/const-parameter-uppercase-lint.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-parameter-uppercase-lint.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: const parameter `x` should have an upper case name
   --> $DIR/const-parameter-uppercase-lint.rs:6:15
diff --git a/src/test/ui/const-generics/const-types.rs b/src/test/ui/const-generics/const-types.rs
index bc5188133d7..bde80f4a1ed 100644
--- a/src/test/ui/const-generics/const-types.rs
+++ b/src/test/ui/const-generics/const-types.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #![allow(dead_code, unused_variables)]
 
diff --git a/src/test/ui/const-generics/const-types.stderr b/src/test/ui/const-generics/const-types.stderr
index 935baf1a63a..4628c900318 100644
--- a/src/test/ui/const-generics/const-types.stderr
+++ b/src/test/ui/const-generics/const-types.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/const-types.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/derive-debug-array-wrapper.rs b/src/test/ui/const-generics/derive-debug-array-wrapper.rs
index eee634c1564..c6d8b32f276 100644
--- a/src/test/ui/const-generics/derive-debug-array-wrapper.rs
+++ b/src/test/ui/const-generics/derive-debug-array-wrapper.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #[derive(Debug)]
 struct X<const N: usize> {
diff --git a/src/test/ui/const-generics/derive-debug-array-wrapper.stderr b/src/test/ui/const-generics/derive-debug-array-wrapper.stderr
index 672586fd3fe..8fbe6d3e9a4 100644
--- a/src/test/ui/const-generics/derive-debug-array-wrapper.stderr
+++ b/src/test/ui/const-generics/derive-debug-array-wrapper.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/derive-debug-array-wrapper.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0277]: arrays only have std trait implementations for lengths 0..=32
   --> $DIR/derive-debug-array-wrapper.rs:6:5
diff --git a/src/test/ui/const-generics/different_byref.rs b/src/test/ui/const-generics/different_byref.rs
index c52a5b8061d..78964eb3dee 100644
--- a/src/test/ui/const-generics/different_byref.rs
+++ b/src/test/ui/const-generics/different_byref.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Const<const V: [usize; 1]> {}
 
diff --git a/src/test/ui/const-generics/different_byref.stderr b/src/test/ui/const-generics/different_byref.stderr
index 9ea2aace89a..001d9852a69 100644
--- a/src/test/ui/const-generics/different_byref.stderr
+++ b/src/test/ui/const-generics/different_byref.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/different_byref.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0308]: mismatched types
   --> $DIR/different_byref.rs:8:9
diff --git a/src/test/ui/const-generics/fn-const-param-call.rs b/src/test/ui/const-generics/fn-const-param-call.rs
index cd4b19db353..afa577fa67f 100644
--- a/src/test/ui/const-generics/fn-const-param-call.rs
+++ b/src/test/ui/const-generics/fn-const-param-call.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics, const_compare_raw_pointers)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn function() -> u32 {
     17
diff --git a/src/test/ui/const-generics/fn-const-param-call.stderr b/src/test/ui/const-generics/fn-const-param-call.stderr
index 872ec11ad1b..9c0f7e3ab9b 100644
--- a/src/test/ui/const-generics/fn-const-param-call.stderr
+++ b/src/test/ui/const-generics/fn-const-param-call.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/fn-const-param-call.rs:3:12
    |
 LL | #![feature(const_generics, const_compare_raw_pointers)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/fn-const-param-infer.rs b/src/test/ui/const-generics/fn-const-param-infer.rs
index dc69fa9eea5..08f6e0db31c 100644
--- a/src/test/ui/const-generics/fn-const-param-infer.rs
+++ b/src/test/ui/const-generics/fn-const-param-infer.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics, const_compare_raw_pointers)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Checked<const F: fn(usize) -> bool>;
 
diff --git a/src/test/ui/const-generics/fn-const-param-infer.stderr b/src/test/ui/const-generics/fn-const-param-infer.stderr
index 7bfb0873a10..3e07393b9aa 100644
--- a/src/test/ui/const-generics/fn-const-param-infer.stderr
+++ b/src/test/ui/const-generics/fn-const-param-infer.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/fn-const-param-infer.rs:1:12
    |
 LL | #![feature(const_generics, const_compare_raw_pointers)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0308]: mismatched types
   --> $DIR/fn-const-param-infer.rs:16:31
diff --git a/src/test/ui/const-generics/fn-taking-const-generic-array.rs b/src/test/ui/const-generics/fn-taking-const-generic-array.rs
index d3d17cca4da..8e16221ed4b 100644
--- a/src/test/ui/const-generics/fn-taking-const-generic-array.rs
+++ b/src/test/ui/const-generics/fn-taking-const-generic-array.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::fmt::Display;
 
diff --git a/src/test/ui/const-generics/fn-taking-const-generic-array.stderr b/src/test/ui/const-generics/fn-taking-const-generic-array.stderr
index 5a2ef780e14..52fd0a8fec0 100644
--- a/src/test/ui/const-generics/fn-taking-const-generic-array.stderr
+++ b/src/test/ui/const-generics/fn-taking-const-generic-array.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/fn-taking-const-generic-array.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/forbid-non-structural_match-types.rs b/src/test/ui/const-generics/forbid-non-structural_match-types.rs
index a30cdc3efdf..514e215ba1a 100644
--- a/src/test/ui/const-generics/forbid-non-structural_match-types.rs
+++ b/src/test/ui/const-generics/forbid-non-structural_match-types.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #[derive(PartialEq, Eq)]
 struct A;
diff --git a/src/test/ui/const-generics/forbid-non-structural_match-types.stderr b/src/test/ui/const-generics/forbid-non-structural_match-types.stderr
index 4f343146263..600be64b1e1 100644
--- a/src/test/ui/const-generics/forbid-non-structural_match-types.stderr
+++ b/src/test/ui/const-generics/forbid-non-structural_match-types.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/forbid-non-structural_match-types.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0741]: `C` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter
   --> $DIR/forbid-non-structural_match-types.rs:11:19
diff --git a/src/test/ui/const-generics/foreign-item-const-parameter.rs b/src/test/ui/const-generics/foreign-item-const-parameter.rs
index 4673c8606c3..41113780de3 100644
--- a/src/test/ui/const-generics/foreign-item-const-parameter.rs
+++ b/src/test/ui/const-generics/foreign-item-const-parameter.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 extern "C" {
     fn foo<const X: usize>(); //~ ERROR foreign items may not have const parameters
diff --git a/src/test/ui/const-generics/foreign-item-const-parameter.stderr b/src/test/ui/const-generics/foreign-item-const-parameter.stderr
index b8fd9854ff6..ee947943af1 100644
--- a/src/test/ui/const-generics/foreign-item-const-parameter.stderr
+++ b/src/test/ui/const-generics/foreign-item-const-parameter.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/foreign-item-const-parameter.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0044]: foreign items may not have const parameters
   --> $DIR/foreign-item-const-parameter.rs:5:5
diff --git a/src/test/ui/const-generics/impl-const-generic-struct.rs b/src/test/ui/const-generics/impl-const-generic-struct.rs
index 87572e51e81..4c2aee59ffe 100644
--- a/src/test/ui/const-generics/impl-const-generic-struct.rs
+++ b/src/test/ui/const-generics/impl-const-generic-struct.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct S<const X: u32>;
 
diff --git a/src/test/ui/const-generics/impl-const-generic-struct.stderr b/src/test/ui/const-generics/impl-const-generic-struct.stderr
index 64dbc210d92..9d68df07ce6 100644
--- a/src/test/ui/const-generics/impl-const-generic-struct.stderr
+++ b/src/test/ui/const-generics/impl-const-generic-struct.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/impl-const-generic-struct.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/incorrect-number-of-const-args.rs b/src/test/ui/const-generics/incorrect-number-of-const-args.rs
index 7059e9d8348..cea64654e11 100644
--- a/src/test/ui/const-generics/incorrect-number-of-const-args.rs
+++ b/src/test/ui/const-generics/incorrect-number-of-const-args.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn foo<const X: usize, const Y: usize>() -> usize {
     0
diff --git a/src/test/ui/const-generics/incorrect-number-of-const-args.stderr b/src/test/ui/const-generics/incorrect-number-of-const-args.stderr
index a2492e27e20..51064d7f90f 100644
--- a/src/test/ui/const-generics/incorrect-number-of-const-args.stderr
+++ b/src/test/ui/const-generics/incorrect-number-of-const-args.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/incorrect-number-of-const-args.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0107]: wrong number of const arguments: expected 2, found 1
   --> $DIR/incorrect-number-of-const-args.rs:9:5
diff --git a/src/test/ui/const-generics/infer_arg_from_pat.rs b/src/test/ui/const-generics/infer_arg_from_pat.rs
index a4e3d3dee4a..7e8152dacc4 100644
--- a/src/test/ui/const-generics/infer_arg_from_pat.rs
+++ b/src/test/ui/const-generics/infer_arg_from_pat.rs
@@ -2,7 +2,7 @@
 //
 // see issue #70529
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct A<const N: usize> {
     arr: [u8; N],
diff --git a/src/test/ui/const-generics/infer_arg_from_pat.stderr b/src/test/ui/const-generics/infer_arg_from_pat.stderr
index 7a6da2582a8..f52e5e49a3b 100644
--- a/src/test/ui/const-generics/infer_arg_from_pat.stderr
+++ b/src/test/ui/const-generics/infer_arg_from_pat.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/infer_arg_from_pat.rs:4:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/infer_arr_len_from_pat.rs b/src/test/ui/const-generics/infer_arr_len_from_pat.rs
index 70633bbb141..cede9ea045d 100644
--- a/src/test/ui/const-generics/infer_arr_len_from_pat.rs
+++ b/src/test/ui/const-generics/infer_arr_len_from_pat.rs
@@ -2,7 +2,7 @@
 //
 // see issue #70529
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn as_chunks<const N: usize>() -> [u8; N] {
     loop {}
diff --git a/src/test/ui/const-generics/infer_arr_len_from_pat.stderr b/src/test/ui/const-generics/infer_arr_len_from_pat.stderr
index d698abd2bae..dfadfbb1663 100644
--- a/src/test/ui/const-generics/infer_arr_len_from_pat.stderr
+++ b/src/test/ui/const-generics/infer_arr_len_from_pat.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/infer_arr_len_from_pat.rs:4:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.rs b/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.rs
index 30fbfda112c..952e05bac30 100644
--- a/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.rs
+++ b/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn takes_closure_of_array_3<F>(f: F) where F: Fn([i32; 3]) {
     f([1, 2, 3]);
diff --git a/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.stderr b/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.stderr
index 0924f8da25f..aadd10e5cca 100644
--- a/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.stderr
+++ b/src/test/ui/const-generics/integer-literal-generic-arg-in-where-clause.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/integer-literal-generic-arg-in-where-clause.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issue-61522-array-len-succ.rs b/src/test/ui/const-generics/issue-61522-array-len-succ.rs
index 3b627a5e530..7c8cdeece87 100644
--- a/src/test/ui/const-generics/issue-61522-array-len-succ.rs
+++ b/src/test/ui/const-generics/issue-61522-array-len-succ.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub struct MyArray<const COUNT: usize>([u8; COUNT + 1]);
 //~^ ERROR constant expression depends on a generic parameter
diff --git a/src/test/ui/const-generics/issue-61522-array-len-succ.stderr b/src/test/ui/const-generics/issue-61522-array-len-succ.stderr
index d52ae10ee07..a1fbd5f2025 100644
--- a/src/test/ui/const-generics/issue-61522-array-len-succ.stderr
+++ b/src/test/ui/const-generics/issue-61522-array-len-succ.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61522-array-len-succ.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: constant expression depends on a generic parameter
   --> $DIR/issue-61522-array-len-succ.rs:4:40
diff --git a/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.rs b/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.rs
index b677dcc4af4..74f036e6d89 100644
--- a/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.rs
+++ b/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait Trait<const NAME: &'static str> {
     type Assoc;
diff --git a/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.stderr b/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.stderr
index edaa59bbdc7..720420d9cd6 100644
--- a/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.stderr
+++ b/src/test/ui/const-generics/issue-66596-impl-trait-for-str-const-arg.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-66596-impl-trait-for-str-const-arg.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs b/src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs
index fb234eb0827..26d74ffb254 100644
--- a/src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs
+++ b/src/test/ui/const-generics/issues/issue-60818-struct-constructors.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Generic<const V: usize>;
 
diff --git a/src/test/ui/const-generics/issues/issue-60818-struct-constructors.stderr b/src/test/ui/const-generics/issues/issue-60818-struct-constructors.stderr
index 887d4547933..94a2b673a51 100644
--- a/src/test/ui/const-generics/issues/issue-60818-struct-constructors.stderr
+++ b/src/test/ui/const-generics/issues/issue-60818-struct-constructors.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-60818-struct-constructors.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-61336-1.rs b/src/test/ui/const-generics/issues/issue-61336-1.rs
index 165d3e1c2e6..2135c868bbc 100644
--- a/src/test/ui/const-generics/issues/issue-61336-1.rs
+++ b/src/test/ui/const-generics/issues/issue-61336-1.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 // build-pass
 
diff --git a/src/test/ui/const-generics/issues/issue-61336-1.stderr b/src/test/ui/const-generics/issues/issue-61336-1.stderr
index 34920d8907f..b2c69d57c40 100644
--- a/src/test/ui/const-generics/issues/issue-61336-1.stderr
+++ b/src/test/ui/const-generics/issues/issue-61336-1.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61336-1.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-61336-2.rs b/src/test/ui/const-generics/issues/issue-61336-2.rs
index c5bf6b6ce94..52969056f00 100644
--- a/src/test/ui/const-generics/issues/issue-61336-2.rs
+++ b/src/test/ui/const-generics/issues/issue-61336-2.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn f<T: Copy, const N: usize>(x: T) -> [T; N] {
     [x; { N }]
diff --git a/src/test/ui/const-generics/issues/issue-61336-2.stderr b/src/test/ui/const-generics/issues/issue-61336-2.stderr
index 27ee4f88870..5f3395223f9 100644
--- a/src/test/ui/const-generics/issues/issue-61336-2.stderr
+++ b/src/test/ui/const-generics/issues/issue-61336-2.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61336-2.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
   --> $DIR/issue-61336-2.rs:9:5
diff --git a/src/test/ui/const-generics/issues/issue-61336.rs b/src/test/ui/const-generics/issues/issue-61336.rs
index 7e84e62d8be..eb0f3097627 100644
--- a/src/test/ui/const-generics/issues/issue-61336.rs
+++ b/src/test/ui/const-generics/issues/issue-61336.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn f<T: Copy, const N: usize>(x: T) -> [T; N] {
     [x; N]
diff --git a/src/test/ui/const-generics/issues/issue-61336.stderr b/src/test/ui/const-generics/issues/issue-61336.stderr
index 772a07cccf8..0eee37df3dd 100644
--- a/src/test/ui/const-generics/issues/issue-61336.stderr
+++ b/src/test/ui/const-generics/issues/issue-61336.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61336.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
   --> $DIR/issue-61336.rs:9:5
diff --git a/src/test/ui/const-generics/issues/issue-61422.rs b/src/test/ui/const-generics/issues/issue-61422.rs
index 4fa150ffef0..7e7ef6867ed 100644
--- a/src/test/ui/const-generics/issues/issue-61422.rs
+++ b/src/test/ui/const-generics/issues/issue-61422.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::mem;
 
diff --git a/src/test/ui/const-generics/issues/issue-61422.stderr b/src/test/ui/const-generics/issues/issue-61422.stderr
index a66224b6d17..69bbaada691 100644
--- a/src/test/ui/const-generics/issues/issue-61422.stderr
+++ b/src/test/ui/const-generics/issues/issue-61422.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61422.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-61432.rs b/src/test/ui/const-generics/issues/issue-61432.rs
index 832095ce542..0440468e9e6 100644
--- a/src/test/ui/const-generics/issues/issue-61432.rs
+++ b/src/test/ui/const-generics/issues/issue-61432.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn promote<const N: i32>() {
     // works:
diff --git a/src/test/ui/const-generics/issues/issue-61432.stderr b/src/test/ui/const-generics/issues/issue-61432.stderr
index cb2fa99f6d8..1d547b1b6c9 100644
--- a/src/test/ui/const-generics/issues/issue-61432.stderr
+++ b/src/test/ui/const-generics/issues/issue-61432.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61432.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-61747.rs b/src/test/ui/const-generics/issues/issue-61747.rs
index 64674bb894e..9e0572d3568 100644
--- a/src/test/ui/const-generics/issues/issue-61747.rs
+++ b/src/test/ui/const-generics/issues/issue-61747.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Const<const N: usize>;
 
diff --git a/src/test/ui/const-generics/issues/issue-61747.stderr b/src/test/ui/const-generics/issues/issue-61747.stderr
index 3465db15208..2e405370dc0 100644
--- a/src/test/ui/const-generics/issues/issue-61747.stderr
+++ b/src/test/ui/const-generics/issues/issue-61747.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61747.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.rs b/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.rs
index 4e5e4d045c8..2f3b5c5dc5b 100644
--- a/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.rs
+++ b/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub trait BitLen: Sized {
     const BIT_LEN: usize;
diff --git a/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.stderr b/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.stderr
index 70d0b61cc26..a9abb877c09 100644
--- a/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.stderr
+++ b/src/test/ui/const-generics/issues/issue-62187-encountered-polymorphic-const.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-62187-encountered-polymorphic-const.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: unused variable: `foo`
   --> $DIR/issue-62187-encountered-polymorphic-const.rs:15:9
diff --git a/src/test/ui/const-generics/issues/issue-62456.rs b/src/test/ui/const-generics/issues/issue-62456.rs
index 5d068eb7fc8..37947ad1b33 100644
--- a/src/test/ui/const-generics/issues/issue-62456.rs
+++ b/src/test/ui/const-generics/issues/issue-62456.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn foo<const N: usize>() {
     let _ = [0u64; N + 1];
diff --git a/src/test/ui/const-generics/issues/issue-62456.stderr b/src/test/ui/const-generics/issues/issue-62456.stderr
index 96a07110e73..0454fed6705 100644
--- a/src/test/ui/const-generics/issues/issue-62456.stderr
+++ b/src/test/ui/const-generics/issues/issue-62456.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-62456.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: constant expression depends on a generic parameter
   --> $DIR/issue-62456.rs:5:20
diff --git a/src/test/ui/const-generics/issues/issue-62579-no-match.rs b/src/test/ui/const-generics/issues/issue-62579-no-match.rs
index 0ff7ddc41fe..7eaf5eea078 100644
--- a/src/test/ui/const-generics/issues/issue-62579-no-match.rs
+++ b/src/test/ui/const-generics/issues/issue-62579-no-match.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 #[derive(PartialEq, Eq)]
 struct NoMatch;
diff --git a/src/test/ui/const-generics/issues/issue-62579-no-match.stderr b/src/test/ui/const-generics/issues/issue-62579-no-match.stderr
index 31f8d230935..9fb9b5b13d8 100644
--- a/src/test/ui/const-generics/issues/issue-62579-no-match.stderr
+++ b/src/test/ui/const-generics/issues/issue-62579-no-match.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-62579-no-match.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.rs b/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.rs
index 2bacd6c9a9c..2bcaa27b4d2 100644
--- a/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.rs
+++ b/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait A {}
 struct B;
diff --git a/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.stderr b/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.stderr
index c3db6c65a8f..32054e43716 100644
--- a/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.stderr
+++ b/src/test/ui/const-generics/issues/issue-63322-forbid-dyn.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-63322-forbid-dyn.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0741]: `&'static (dyn A + 'static)` must be annotated with `#[derive(PartialEq, Eq)]` to be used as the type of a const parameter
   --> $DIR/issue-63322-forbid-dyn.rs:8:18
diff --git a/src/test/ui/const-generics/issues/issue-64519.rs b/src/test/ui/const-generics/issues/issue-64519.rs
index 72cce9b4843..e9391096b04 100644
--- a/src/test/ui/const-generics/issues/issue-64519.rs
+++ b/src/test/ui/const-generics/issues/issue-64519.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Foo<const D: usize> {
     state: Option<[u8; D]>,
diff --git a/src/test/ui/const-generics/issues/issue-64519.stderr b/src/test/ui/const-generics/issues/issue-64519.stderr
index 94c010ba260..6552aea4ad1 100644
--- a/src/test/ui/const-generics/issues/issue-64519.stderr
+++ b/src/test/ui/const-generics/issues/issue-64519.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-64519.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-66906.rs b/src/test/ui/const-generics/issues/issue-66906.rs
index 461fe837dac..486c72d8a34 100644
--- a/src/test/ui/const-generics/issues/issue-66906.rs
+++ b/src/test/ui/const-generics/issues/issue-66906.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub struct Tuple;
 
diff --git a/src/test/ui/const-generics/issues/issue-66906.stderr b/src/test/ui/const-generics/issues/issue-66906.stderr
index 6730c97604c..8e8b552f90e 100644
--- a/src/test/ui/const-generics/issues/issue-66906.stderr
+++ b/src/test/ui/const-generics/issues/issue-66906.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-66906.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-70125-1.rs b/src/test/ui/const-generics/issues/issue-70125-1.rs
index 8b933c078ff..08a8309d431 100644
--- a/src/test/ui/const-generics/issues/issue-70125-1.rs
+++ b/src/test/ui/const-generics/issues/issue-70125-1.rs
@@ -1,6 +1,6 @@
 // run-pass
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 const L: usize = 4;
 
diff --git a/src/test/ui/const-generics/issues/issue-70125-1.stderr b/src/test/ui/const-generics/issues/issue-70125-1.stderr
index b095d577fb7..8ad4b25ae5b 100644
--- a/src/test/ui/const-generics/issues/issue-70125-1.stderr
+++ b/src/test/ui/const-generics/issues/issue-70125-1.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-70125-1.rs:2:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-70125-2.rs b/src/test/ui/const-generics/issues/issue-70125-2.rs
index a3eca0dd7d9..fb7d4886a7c 100644
--- a/src/test/ui/const-generics/issues/issue-70125-2.rs
+++ b/src/test/ui/const-generics/issues/issue-70125-2.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn main() {
     <()>::foo();
diff --git a/src/test/ui/const-generics/issues/issue-70125-2.stderr b/src/test/ui/const-generics/issues/issue-70125-2.stderr
index 6a30e5e783e..c1f9634810e 100644
--- a/src/test/ui/const-generics/issues/issue-70125-2.stderr
+++ b/src/test/ui/const-generics/issues/issue-70125-2.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-70125-2.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue-70167.rs b/src/test/ui/const-generics/issues/issue-70167.rs
index 58fac8e0511..b53cec80071 100644
--- a/src/test/ui/const-generics/issues/issue-70167.rs
+++ b/src/test/ui/const-generics/issues/issue-70167.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub trait Trait<const N: usize>: From<<Self as Trait<N>>::Item> {
   type Item;
diff --git a/src/test/ui/const-generics/issues/issue-70167.stderr b/src/test/ui/const-generics/issues/issue-70167.stderr
index 2b56ed977ee..5d647e933c4 100644
--- a/src/test/ui/const-generics/issues/issue-70167.stderr
+++ b/src/test/ui/const-generics/issues/issue-70167.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-70167.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/issues/issue70273-assoc-fn.rs b/src/test/ui/const-generics/issues/issue70273-assoc-fn.rs
index a192ddea9c6..c22e61d0ce3 100644
--- a/src/test/ui/const-generics/issues/issue70273-assoc-fn.rs
+++ b/src/test/ui/const-generics/issues/issue70273-assoc-fn.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait T<const A: usize> {
     fn f();
diff --git a/src/test/ui/const-generics/issues/issue70273-assoc-fn.stderr b/src/test/ui/const-generics/issues/issue70273-assoc-fn.stderr
index afd2a50242f..931701b64b4 100644
--- a/src/test/ui/const-generics/issues/issue70273-assoc-fn.stderr
+++ b/src/test/ui/const-generics/issues/issue70273-assoc-fn.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue70273-assoc-fn.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/mut-ref-const-param-array.rs b/src/test/ui/const-generics/mut-ref-const-param-array.rs
index f930fb87963..9ca1f4552f5 100644
--- a/src/test/ui/const-generics/mut-ref-const-param-array.rs
+++ b/src/test/ui/const-generics/mut-ref-const-param-array.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::ops::AddAssign;
 
diff --git a/src/test/ui/const-generics/mut-ref-const-param-array.stderr b/src/test/ui/const-generics/mut-ref-const-param-array.stderr
index 336364e5aea..acbc2df1d74 100644
--- a/src/test/ui/const-generics/mut-ref-const-param-array.stderr
+++ b/src/test/ui/const-generics/mut-ref-const-param-array.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/mut-ref-const-param-array.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/raw-ptr-const-param-deref.rs b/src/test/ui/const-generics/raw-ptr-const-param-deref.rs
index 745dde3c287..c498bfe2e97 100644
--- a/src/test/ui/const-generics/raw-ptr-const-param-deref.rs
+++ b/src/test/ui/const-generics/raw-ptr-const-param-deref.rs
@@ -1,6 +1,6 @@
 // run-pass
 #![feature(const_generics, const_compare_raw_pointers)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 const A: u32 = 3;
 
diff --git a/src/test/ui/const-generics/raw-ptr-const-param-deref.stderr b/src/test/ui/const-generics/raw-ptr-const-param-deref.stderr
index 736c9b49725..1ffc63ffdac 100644
--- a/src/test/ui/const-generics/raw-ptr-const-param-deref.stderr
+++ b/src/test/ui/const-generics/raw-ptr-const-param-deref.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/raw-ptr-const-param-deref.rs:2:12
    |
 LL | #![feature(const_generics, const_compare_raw_pointers)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/raw-ptr-const-param.rs b/src/test/ui/const-generics/raw-ptr-const-param.rs
index f0349f46962..d7d970e952b 100644
--- a/src/test/ui/const-generics/raw-ptr-const-param.rs
+++ b/src/test/ui/const-generics/raw-ptr-const-param.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics, const_compare_raw_pointers)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct Const<const P: *const u32>;
 
diff --git a/src/test/ui/const-generics/raw-ptr-const-param.stderr b/src/test/ui/const-generics/raw-ptr-const-param.stderr
index a2496a6558d..6644c72236b 100644
--- a/src/test/ui/const-generics/raw-ptr-const-param.stderr
+++ b/src/test/ui/const-generics/raw-ptr-const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/raw-ptr-const-param.rs:1:12
    |
 LL | #![feature(const_generics, const_compare_raw_pointers)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0308]: mismatched types
   --> $DIR/raw-ptr-const-param.rs:7:40
diff --git a/src/test/ui/const-generics/slice-const-param-mismatch.rs b/src/test/ui/const-generics/slice-const-param-mismatch.rs
index 73c75ae6668..4f321b02b82 100644
--- a/src/test/ui/const-generics/slice-const-param-mismatch.rs
+++ b/src/test/ui/const-generics/slice-const-param-mismatch.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct ConstString<const T: &'static str>;
 struct ConstBytes<const T: &'static [u8]>;
diff --git a/src/test/ui/const-generics/slice-const-param-mismatch.stderr b/src/test/ui/const-generics/slice-const-param-mismatch.stderr
index e497cc3220d..cc21f197e08 100644
--- a/src/test/ui/const-generics/slice-const-param-mismatch.stderr
+++ b/src/test/ui/const-generics/slice-const-param-mismatch.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/slice-const-param-mismatch.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0308]: mismatched types
   --> $DIR/slice-const-param-mismatch.rs:9:35
diff --git a/src/test/ui/const-generics/slice-const-param.rs b/src/test/ui/const-generics/slice-const-param.rs
index 2629caa3921..9668f7ddabb 100644
--- a/src/test/ui/const-generics/slice-const-param.rs
+++ b/src/test/ui/const-generics/slice-const-param.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 pub fn function_with_str<const STRING: &'static str>() -> &'static str {
     STRING
diff --git a/src/test/ui/const-generics/slice-const-param.stderr b/src/test/ui/const-generics/slice-const-param.stderr
index 80fdf3296bc..524bd41a669 100644
--- a/src/test/ui/const-generics/slice-const-param.stderr
+++ b/src/test/ui/const-generics/slice-const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/slice-const-param.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/struct-with-invalid-const-param.rs b/src/test/ui/const-generics/struct-with-invalid-const-param.rs
index 207b07bf695..0b00481d903 100644
--- a/src/test/ui/const-generics/struct-with-invalid-const-param.rs
+++ b/src/test/ui/const-generics/struct-with-invalid-const-param.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct S<const C: u8>(C); //~ ERROR expected type, found const parameter
 
diff --git a/src/test/ui/const-generics/struct-with-invalid-const-param.stderr b/src/test/ui/const-generics/struct-with-invalid-const-param.stderr
index 7472793f809..a968b26bc26 100644
--- a/src/test/ui/const-generics/struct-with-invalid-const-param.stderr
+++ b/src/test/ui/const-generics/struct-with-invalid-const-param.stderr
@@ -7,13 +7,14 @@ LL | struct S<const C: u8>(C);
    | |                     help: a struct with a similar name exists: `S`
    | similarly named struct `S` defined here
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/struct-with-invalid-const-param.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to previous error; 1 warning emitted
 
diff --git a/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.rs b/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.rs
index 794048174f9..1aed9cfe927 100644
--- a/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.rs
+++ b/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::mem::MaybeUninit;
 
diff --git a/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.stderr b/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.stderr
index 0bf40839813..6077fe5b1ed 100644
--- a/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.stderr
+++ b/src/test/ui/const-generics/transparent-maybeunit-array-wrapper.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/transparent-maybeunit-array-wrapper.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/type_of_anon_const.rs b/src/test/ui/const-generics/type_of_anon_const.rs
index 776084b77a5..588c7b9523a 100644
--- a/src/test/ui/const-generics/type_of_anon_const.rs
+++ b/src/test/ui/const-generics/type_of_anon_const.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait T<const A: usize> {
     fn l<const N: bool>() -> usize;
diff --git a/src/test/ui/const-generics/type_of_anon_const.stderr b/src/test/ui/const-generics/type_of_anon_const.stderr
index 5f848c3ec52..8afed0d3986 100644
--- a/src/test/ui/const-generics/type_of_anon_const.stderr
+++ b/src/test/ui/const-generics/type_of_anon_const.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/type_of_anon_const.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/types-mismatch-const-args.rs b/src/test/ui/const-generics/types-mismatch-const-args.rs
index b25b7331017..bf517c11262 100644
--- a/src/test/ui/const-generics/types-mismatch-const-args.rs
+++ b/src/test/ui/const-generics/types-mismatch-const-args.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 // tests the diagnostic output of type mismatches for types that have const generics arguments.
 
diff --git a/src/test/ui/const-generics/types-mismatch-const-args.stderr b/src/test/ui/const-generics/types-mismatch-const-args.stderr
index a76bbd177fb..2131738554f 100644
--- a/src/test/ui/const-generics/types-mismatch-const-args.stderr
+++ b/src/test/ui/const-generics/types-mismatch-const-args.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/types-mismatch-const-args.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0308]: mismatched types
   --> $DIR/types-mismatch-const-args.rs:13:41
diff --git a/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs b/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs
index 7942631bb70..7473718351e 100644
--- a/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs
+++ b/src/test/ui/const-generics/uninferred-consts-during-codegen-1.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::fmt;
 
diff --git a/src/test/ui/const-generics/uninferred-consts-during-codegen-1.stderr b/src/test/ui/const-generics/uninferred-consts-during-codegen-1.stderr
index c1d115b4f1d..f41628d5d8e 100644
--- a/src/test/ui/const-generics/uninferred-consts-during-codegen-1.stderr
+++ b/src/test/ui/const-generics/uninferred-consts-during-codegen-1.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/uninferred-consts-during-codegen-1.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs b/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs
index 0cf505906f6..8b95a010473 100644
--- a/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs
+++ b/src/test/ui/const-generics/uninferred-consts-during-codegen-2.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 use std::fmt;
 
diff --git a/src/test/ui/const-generics/uninferred-consts-during-codegen-2.stderr b/src/test/ui/const-generics/uninferred-consts-during-codegen-2.stderr
index 2738f37b21e..f1703bc3a2f 100644
--- a/src/test/ui/const-generics/uninferred-consts-during-codegen-2.stderr
+++ b/src/test/ui/const-generics/uninferred-consts-during-codegen-2.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/uninferred-consts-during-codegen-2.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/unused-const-param.rs b/src/test/ui/const-generics/unused-const-param.rs
index 8025b3af8f1..d9292efc21b 100644
--- a/src/test/ui/const-generics/unused-const-param.rs
+++ b/src/test/ui/const-generics/unused-const-param.rs
@@ -1,7 +1,7 @@
 // check-pass
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct A<const N: usize>; // ok
 
diff --git a/src/test/ui/const-generics/unused-const-param.stderr b/src/test/ui/const-generics/unused-const-param.stderr
index 6d3d1a612b8..be015a689ae 100644
--- a/src/test/ui/const-generics/unused-const-param.stderr
+++ b/src/test/ui/const-generics/unused-const-param.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/unused-const-param.rs:3:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/const-generics/unused_braces.rs b/src/test/ui/const-generics/unused_braces.rs
index 05234faf714..2c3ce7c9eab 100644
--- a/src/test/ui/const-generics/unused_braces.rs
+++ b/src/test/ui/const-generics/unused_braces.rs
@@ -2,7 +2,7 @@
 #![warn(unused_braces)]
 
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 struct A<const N: usize>;
 
diff --git a/src/test/ui/const-generics/unused_braces.stderr b/src/test/ui/const-generics/unused_braces.stderr
index 2cc4070f76e..e14958ee566 100644
--- a/src/test/ui/const-generics/unused_braces.stderr
+++ b/src/test/ui/const-generics/unused_braces.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/unused_braces.rs:4:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: unnecessary braces around const expression
   --> $DIR/unused_braces.rs:11:14
diff --git a/src/test/ui/error-codes/E0730.rs b/src/test/ui/error-codes/E0730.rs
index 66a6e1c817a..30745814b4a 100644
--- a/src/test/ui/error-codes/E0730.rs
+++ b/src/test/ui/error-codes/E0730.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn is_123<const N: usize>(x: [u32; N]) -> bool {
     match x {
diff --git a/src/test/ui/error-codes/E0730.stderr b/src/test/ui/error-codes/E0730.stderr
index b0d43225be6..f915f6edef5 100644
--- a/src/test/ui/error-codes/E0730.stderr
+++ b/src/test/ui/error-codes/E0730.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/E0730.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error[E0730]: cannot pattern-match on an array without a fixed length
   --> $DIR/E0730.rs:6:9
diff --git a/src/test/ui/generic-associated-types/gat-incomplete-warning.stderr b/src/test/ui/generic-associated-types/gat-incomplete-warning.stderr
index 50f3c1e0d5a..0215ff395df 100644
--- a/src/test/ui/generic-associated-types/gat-incomplete-warning.stderr
+++ b/src/test/ui/generic-associated-types/gat-incomplete-warning.stderr
@@ -1,10 +1,11 @@
-warning: the feature `generic_associated_types` is incomplete and may cause the compiler to crash
+warning: the feature `generic_associated_types` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/gat-incomplete-warning.rs:3:12
    |
 LL | #![feature(generic_associated_types)]
    |            ^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44265 <https://github.com/rust-lang/rust/issues/44265> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/hygiene/generic_params.stderr b/src/test/ui/hygiene/generic_params.stderr
index 94a1eca4953..4ca6d199835 100644
--- a/src/test/ui/hygiene/generic_params.stderr
+++ b/src/test/ui/hygiene/generic_params.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/generic_params.rs:6:37
    |
 LL | #![feature(decl_macro, rustc_attrs, const_generics)]
    |                                     ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/hygiene/issue-61574-const-parameters.stderr b/src/test/ui/hygiene/issue-61574-const-parameters.stderr
index 11dba87d97b..b351b8b73a0 100644
--- a/src/test/ui/hygiene/issue-61574-const-parameters.stderr
+++ b/src/test/ui/hygiene/issue-61574-const-parameters.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-61574-const-parameters.rs:6:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/if-attrs/let-chains-attr.stderr b/src/test/ui/if-attrs/let-chains-attr.stderr
index 1a48fc12b8f..8b987471534 100644
--- a/src/test/ui/if-attrs/let-chains-attr.stderr
+++ b/src/test/ui/if-attrs/let-chains-attr.stderr
@@ -1,10 +1,11 @@
-warning: the feature `let_chains` is incomplete and may cause the compiler to crash
+warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/let-chains-attr.rs:3:12
    |
 LL | #![feature(let_chains)]
    |            ^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/impl-trait-in-bindings.rs b/src/test/ui/impl-trait-in-bindings.rs
index 2e9b6cd5c78..c7fae45d5ca 100644
--- a/src/test/ui/impl-trait-in-bindings.rs
+++ b/src/test/ui/impl-trait-in-bindings.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(impl_trait_in_bindings)]
-//~^ WARN the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `impl_trait_in_bindings` is incomplete
 
 use std::fmt::Debug;
 
diff --git a/src/test/ui/impl-trait-in-bindings.stderr b/src/test/ui/impl-trait-in-bindings.stderr
index 2623d8e2d02..bf739d4722f 100644
--- a/src/test/ui/impl-trait-in-bindings.stderr
+++ b/src/test/ui/impl-trait-in-bindings.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/impl-trait-in-bindings.rs:3:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/impl-trait/bindings-opaque.rs b/src/test/ui/impl-trait/bindings-opaque.rs
index d4eef29ed32..d1f42be077d 100644
--- a/src/test/ui/impl-trait/bindings-opaque.rs
+++ b/src/test/ui/impl-trait/bindings-opaque.rs
@@ -1,5 +1,5 @@
 #![feature(impl_trait_in_bindings)]
-//~^ WARN the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `impl_trait_in_bindings` is incomplete
 
 const FOO: impl Copy = 42;
 
diff --git a/src/test/ui/impl-trait/bindings-opaque.stderr b/src/test/ui/impl-trait/bindings-opaque.stderr
index 14d33270ca5..6656968d79a 100644
--- a/src/test/ui/impl-trait/bindings-opaque.stderr
+++ b/src/test/ui/impl-trait/bindings-opaque.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/bindings-opaque.rs:1:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 error[E0599]: no method named `count_ones` found for opaque type `impl std::marker::Copy` in the current scope
   --> $DIR/bindings-opaque.rs:11:17
diff --git a/src/test/ui/impl-trait/bindings.rs b/src/test/ui/impl-trait/bindings.rs
index 104a44d6566..fd79ba68fbd 100644
--- a/src/test/ui/impl-trait/bindings.rs
+++ b/src/test/ui/impl-trait/bindings.rs
@@ -1,5 +1,5 @@
 #![feature(impl_trait_in_bindings)]
-//~^ WARN the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `impl_trait_in_bindings` is incomplete
 
 fn a<T: Clone>(x: T) {
     const foo: impl Clone = x;
diff --git a/src/test/ui/impl-trait/bindings.stderr b/src/test/ui/impl-trait/bindings.stderr
index 7d64980074a..e983fdecdba 100644
--- a/src/test/ui/impl-trait/bindings.stderr
+++ b/src/test/ui/impl-trait/bindings.stderr
@@ -22,13 +22,14 @@ error[E0435]: attempt to use a non-constant value in a constant
 LL |         const foo: impl Clone = x;
    |                                 ^ non-constant value
 
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/bindings.rs:1:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 error: aborting due to 4 previous errors; 1 warning emitted
 
diff --git a/src/test/ui/impl-trait/bound-normalization-fail.stderr b/src/test/ui/impl-trait/bound-normalization-fail.stderr
index f5092044627..36b4ebca4df 100644
--- a/src/test/ui/impl-trait/bound-normalization-fail.stderr
+++ b/src/test/ui/impl-trait/bound-normalization-fail.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/bound-normalization-fail.rs:4:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 error[E0271]: type mismatch resolving `<Foo<()> as FooLike>::Output == <T as impl_trait::Trait>::Assoc`
   --> $DIR/bound-normalization-fail.rs:27:32
diff --git a/src/test/ui/impl-trait/bound-normalization-pass.stderr b/src/test/ui/impl-trait/bound-normalization-pass.stderr
index fcc3cc51236..afc181a906a 100644
--- a/src/test/ui/impl-trait/bound-normalization-pass.stderr
+++ b/src/test/ui/impl-trait/bound-normalization-pass.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/bound-normalization-pass.rs:5:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.rs b/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.rs
index 7d75f254bfe..2e96022318b 100644
--- a/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.rs
+++ b/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.rs
@@ -1,6 +1,6 @@
 // edition:2018
 #![feature(impl_trait_in_bindings)]
-//~^ WARN the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `impl_trait_in_bindings` is incomplete
 
 use std::io::Error;
 
diff --git a/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.stderr b/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.stderr
index 39f5d3c6d8c..89a22f5e5d6 100644
--- a/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.stderr
+++ b/src/test/ui/inference/cannot-infer-async-enabled-impl-trait-bindings.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/cannot-infer-async-enabled-impl-trait-bindings.rs:2:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 error[E0282]: type annotations needed for `impl std::future::Future`
   --> $DIR/cannot-infer-async-enabled-impl-trait-bindings.rs:13:9
diff --git a/src/test/ui/issues/issue-59508-1.rs b/src/test/ui/issues/issue-59508-1.rs
index 4fbed9b08f2..a687a9e3be1 100644
--- a/src/test/ui/issues/issue-59508-1.rs
+++ b/src/test/ui/issues/issue-59508-1.rs
@@ -1,6 +1,6 @@
 #![allow(dead_code)]
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 // This test checks that generic parameter re-ordering diagnostic suggestions mention that
 // consts come after types and lifetimes when the `const_generics` feature is enabled.
diff --git a/src/test/ui/issues/issue-59508-1.stderr b/src/test/ui/issues/issue-59508-1.stderr
index 25efbb10529..85db20b13fb 100644
--- a/src/test/ui/issues/issue-59508-1.stderr
+++ b/src/test/ui/issues/issue-59508-1.stderr
@@ -4,13 +4,14 @@ error: lifetime parameters must be declared prior to type parameters
 LL |     pub fn do_things<T, 'a, 'b: 'a>() {
    |                     ----^^--^^----- help: reorder the parameters: lifetimes, then types, then consts: `<'a, 'b: 'a, T>`
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-59508-1.rs:2:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to previous error; 1 warning emitted
 
diff --git a/src/test/ui/parser/impl-item-type-no-body-semantic-fail.stderr b/src/test/ui/parser/impl-item-type-no-body-semantic-fail.stderr
index 7678ee6c821..214467793bc 100644
--- a/src/test/ui/parser/impl-item-type-no-body-semantic-fail.stderr
+++ b/src/test/ui/parser/impl-item-type-no-body-semantic-fail.stderr
@@ -42,13 +42,14 @@ LL |     type W where Self: Eq;
    |                          |
    |                          help: provide a definition for the type: `= <type>;`
 
-warning: the feature `generic_associated_types` is incomplete and may cause the compiler to crash
+warning: the feature `generic_associated_types` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/impl-item-type-no-body-semantic-fail.rs:1:12
    |
 LL | #![feature(generic_associated_types)]
    |            ^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44265 <https://github.com/rust-lang/rust/issues/44265> for more information
 
 error[E0202]: associated types are not yet supported in inherent impls (see #8995)
   --> $DIR/impl-item-type-no-body-semantic-fail.rs:9:5
diff --git a/src/test/ui/resolve/issue-65035-static-with-parent-generics.rs b/src/test/ui/resolve/issue-65035-static-with-parent-generics.rs
index b6a08351609..f09ab3bf919 100644
--- a/src/test/ui/resolve/issue-65035-static-with-parent-generics.rs
+++ b/src/test/ui/resolve/issue-65035-static-with-parent-generics.rs
@@ -1,5 +1,5 @@
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 fn f<T>() {
     extern "C" {
diff --git a/src/test/ui/resolve/issue-65035-static-with-parent-generics.stderr b/src/test/ui/resolve/issue-65035-static-with-parent-generics.stderr
index 6076328b12f..7f8151db06f 100644
--- a/src/test/ui/resolve/issue-65035-static-with-parent-generics.stderr
+++ b/src/test/ui/resolve/issue-65035-static-with-parent-generics.stderr
@@ -40,13 +40,14 @@ LL | fn i<const N: usize>() {
 LL |     static a: [u8; N] = [0; N];
    |                             ^ use of generic parameter from outer function
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/issue-65035-static-with-parent-generics.rs:1:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 error: aborting due to 5 previous errors; 1 warning emitted
 
diff --git a/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr b/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr
index 4f11c306f50..4c3a00e5f35 100644
--- a/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr
+++ b/src/test/ui/rfc-2497-if-let-chains/disallowed-positions.stderr
@@ -499,19 +499,22 @@ LL |         true && let 1 = 1
    = note: only supported directly in conditions of `if`- and `while`-expressions
    = note: as well as when nested within `&&` and parenthesis in those conditions
 
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/disallowed-positions.rs:20:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
-warning: the feature `let_chains` is incomplete and may cause the compiler to crash
+warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/disallowed-positions.rs:22:12
    |
 LL | #![feature(let_chains)] // Avoid inflating `.stderr` with overzealous gates in this test.
    |            ^^^^^^^^^^
+   |
+   = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information
 
 error[E0658]: `match` is not allowed in a `const`
   --> $DIR/disallowed-positions.rs:218:17
diff --git a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.rs b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.rs
index 5769366fb45..bf082932bd6 100644
--- a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.rs
+++ b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.rs
@@ -1,5 +1,5 @@
 #![feature(raw_dylib)]
-//~^ WARN the feature `raw_dylib` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `raw_dylib` is incomplete
 
 #[link(name="foo")]
 extern {
diff --git a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.stderr b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.stderr
index c7765a453c4..5d8545b5062 100644
--- a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.stderr
+++ b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-and-name.stderr
@@ -1,10 +1,11 @@
-warning: the feature `raw_dylib` is incomplete and may cause the compiler to crash
+warning: the feature `raw_dylib` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/link-ordinal-and-name.rs:1:12
    |
 LL | #![feature(raw_dylib)]
    |            ^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #58713 <https://github.com/rust-lang/rust/issues/58713> for more information
 
 error: cannot use `#[link_name]` with `#[link_ordinal]`
   --> $DIR/link-ordinal-and-name.rs:7:5
diff --git a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.rs b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.rs
index 82fb1151c23..ea633c5bcce 100644
--- a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.rs
+++ b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.rs
@@ -1,5 +1,5 @@
 #![feature(raw_dylib)]
-//~^ WARN the feature `raw_dylib` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `raw_dylib` is incomplete
 
 #[link(name="foo")]
 extern {
diff --git a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.stderr b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.stderr
index 4826c46e90c..8453a3966be 100644
--- a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.stderr
+++ b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-invalid-format.stderr
@@ -1,10 +1,11 @@
-warning: the feature `raw_dylib` is incomplete and may cause the compiler to crash
+warning: the feature `raw_dylib` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/link-ordinal-invalid-format.rs:1:12
    |
 LL | #![feature(raw_dylib)]
    |            ^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #58713 <https://github.com/rust-lang/rust/issues/58713> for more information
 
 error: illegal ordinal format in `link_ordinal`
   --> $DIR/link-ordinal-invalid-format.rs:6:5
diff --git a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.rs b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.rs
index 69596ad04ff..55cc329dc59 100644
--- a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.rs
+++ b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.rs
@@ -1,5 +1,5 @@
 #![feature(raw_dylib)]
-//~^ WARN the feature `raw_dylib` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `raw_dylib` is incomplete
 
 #[link(name="foo")]
 extern {
diff --git a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.stderr b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.stderr
index f8bfe5a62b8..35f9b53fdf7 100644
--- a/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.stderr
+++ b/src/test/ui/rfc-2627-raw-dylib/link-ordinal-too-large.stderr
@@ -1,10 +1,11 @@
-warning: the feature `raw_dylib` is incomplete and may cause the compiler to crash
+warning: the feature `raw_dylib` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/link-ordinal-too-large.rs:1:12
    |
 LL | #![feature(raw_dylib)]
    |            ^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #58713 <https://github.com/rust-lang/rust/issues/58713> for more information
 
 error: ordinal value in `link_ordinal` is too large: `18446744073709551616`
   --> $DIR/link-ordinal-too-large.rs:6:5
diff --git a/src/test/ui/type-alias-impl-trait/assoc-type-const.rs b/src/test/ui/type-alias-impl-trait/assoc-type-const.rs
index 7f3f86e4df0..d53f562e99f 100644
--- a/src/test/ui/type-alias-impl-trait/assoc-type-const.rs
+++ b/src/test/ui/type-alias-impl-trait/assoc-type-const.rs
@@ -4,7 +4,7 @@
 
 #![feature(type_alias_impl_trait)]
 #![feature(const_generics)]
-//~^ WARN the feature `const_generics` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `const_generics` is incomplete
 
 trait UnwrapItemsExt<'a, const C: usize> {
     type Iter;
diff --git a/src/test/ui/type-alias-impl-trait/assoc-type-const.stderr b/src/test/ui/type-alias-impl-trait/assoc-type-const.stderr
index 77cd7f4b93a..e0c1b023861 100644
--- a/src/test/ui/type-alias-impl-trait/assoc-type-const.stderr
+++ b/src/test/ui/type-alias-impl-trait/assoc-type-const.stderr
@@ -1,10 +1,11 @@
-warning: the feature `const_generics` is incomplete and may cause the compiler to crash
+warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/assoc-type-const.rs:6:12
    |
 LL | #![feature(const_generics)]
    |            ^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
 
 warning: 1 warning emitted
 
diff --git a/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.rs b/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.rs
index 0fd4d26ef60..bc2bf9eca93 100644
--- a/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.rs
+++ b/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.rs
@@ -6,7 +6,7 @@
 // Specifically, this line requires `impl_trait_in_bindings` to be enabled:
 // https://github.com/rust-lang/rust/blob/481068a707679257e2a738b40987246e0420e787/src/librustc_typeck/check/mod.rs#L856
 #![feature(impl_trait_in_bindings)]
-//~^ WARN the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+//~^ WARN the feature `impl_trait_in_bindings` is incomplete
 
 // Ensures that `const` items can constrain an opaque `impl Trait`.
 
diff --git a/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.stderr b/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.stderr
index 5efb992a210..b0593d51a25 100644
--- a/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.stderr
+++ b/src/test/ui/type-alias-impl-trait/type-alias-impl-trait-const.stderr
@@ -1,10 +1,11 @@
-warning: the feature `impl_trait_in_bindings` is incomplete and may cause the compiler to crash
+warning: the feature `impl_trait_in_bindings` is incomplete and may not be safe to use and/or cause compiler crashes
   --> $DIR/type-alias-impl-trait-const.rs:8:12
    |
 LL | #![feature(impl_trait_in_bindings)]
    |            ^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(incomplete_features)]` on by default
+   = note: see issue #63065 <https://github.com/rust-lang/rust/issues/63065> for more information
 
 warning: 1 warning emitted