diff --git a/compiler/rustc_feature/src/active.rs b/compiler/rustc_feature/src/active.rs
index 34a8de67ca0f5..c34ecc966d0ae 100644
--- a/compiler/rustc_feature/src/active.rs
+++ b/compiler/rustc_feature/src/active.rs
@@ -409,7 +409,7 @@ declare_features! (
     /// Allows associated types in inherent impls.
     (incomplete, inherent_associated_types, "1.52.0", Some(8995), None),
     /// Allow anonymous constants from an inline `const` block
-    (incomplete, inline_const, "1.49.0", Some(76001), None),
+    (active, inline_const, "1.49.0", Some(76001), None),
     /// Allow anonymous constants from an inline `const` block in pattern position
     (incomplete, inline_const_pat, "1.58.0", Some(76001), None),
     /// Allows using `pointer` and `reference` in intra-doc links
diff --git a/src/test/ui/consts/closure-structural-match-issue-90013.rs b/src/test/ui/consts/closure-structural-match-issue-90013.rs
index 7853ee41a9009..1952ddb941e51 100644
--- a/src/test/ui/consts/closure-structural-match-issue-90013.rs
+++ b/src/test/ui/consts/closure-structural-match-issue-90013.rs
@@ -1,6 +1,5 @@
 // Regression test for issue 90013.
 // check-pass
-#![allow(incomplete_features)]
 #![feature(inline_const)]
 
 fn main() {
diff --git a/src/test/ui/consts/const-blocks/fn-call-in-const.rs b/src/test/ui/consts/const-blocks/fn-call-in-const.rs
index 7936af75d84ac..20496f62712c2 100644
--- a/src/test/ui/consts/const-blocks/fn-call-in-const.rs
+++ b/src/test/ui/consts/const-blocks/fn-call-in-const.rs
@@ -1,7 +1,7 @@
 // run-pass
 
 #![feature(inline_const)]
-#![allow(unused, incomplete_features)]
+#![allow(unused)]
 
 // Some type that is not copyable.
 struct Bar;
diff --git a/src/test/ui/inline-const/const-expr-array-init.rs b/src/test/ui/inline-const/const-expr-array-init.rs
index 8bb5dab1fa00d..8a92cdbc0f981 100644
--- a/src/test/ui/inline-const/const-expr-array-init.rs
+++ b/src/test/ui/inline-const/const-expr-array-init.rs
@@ -1,6 +1,5 @@
 // build-pass
 
-#![allow(incomplete_features)]
 #![feature(inline_const)]
 
 use std::cell::Cell;
diff --git a/src/test/ui/inline-const/const-expr-basic.rs b/src/test/ui/inline-const/const-expr-basic.rs
index 9254c96a1e7a6..dac46fe25ecfc 100644
--- a/src/test/ui/inline-const/const-expr-basic.rs
+++ b/src/test/ui/inline-const/const-expr-basic.rs
@@ -1,7 +1,7 @@
 // run-pass
 
-#![allow(incomplete_features)]
 #![feature(inline_const)]
+
 fn foo() -> i32 {
     const {
         let x = 5 + 10;
diff --git a/src/test/ui/inline-const/const-expr-inference.rs b/src/test/ui/inline-const/const-expr-inference.rs
index 6aa2a2f3367fc..0d5892a74d956 100644
--- a/src/test/ui/inline-const/const-expr-inference.rs
+++ b/src/test/ui/inline-const/const-expr-inference.rs
@@ -1,7 +1,6 @@
 // check-pass
 
 #![feature(inline_const)]
-#![allow(incomplete_features)]
 
 pub fn todo<T>() -> T {
     const { todo!() }
diff --git a/src/test/ui/inline-const/const-expr-lifetime-err.rs b/src/test/ui/inline-const/const-expr-lifetime-err.rs
index e56cbc94038a0..0a032a7338ad0 100644
--- a/src/test/ui/inline-const/const-expr-lifetime-err.rs
+++ b/src/test/ui/inline-const/const-expr-lifetime-err.rs
@@ -1,4 +1,3 @@
-#![allow(incomplete_features)]
 #![feature(const_mut_refs)]
 #![feature(inline_const)]
 
diff --git a/src/test/ui/inline-const/const-expr-lifetime-err.stderr b/src/test/ui/inline-const/const-expr-lifetime-err.stderr
index 30ecd338a856d..a23f7c9a796c5 100644
--- a/src/test/ui/inline-const/const-expr-lifetime-err.stderr
+++ b/src/test/ui/inline-const/const-expr-lifetime-err.stderr
@@ -1,5 +1,5 @@
 error[E0597]: `y` does not live long enough
-  --> $DIR/const-expr-lifetime-err.rs:24:30
+  --> $DIR/const-expr-lifetime-err.rs:23:30
    |
 LL | fn foo<'a>() {
    |        -- lifetime `'a` defined here
diff --git a/src/test/ui/inline-const/const-expr-lifetime.rs b/src/test/ui/inline-const/const-expr-lifetime.rs
index f622f2cbddf48..d883deb2845d3 100644
--- a/src/test/ui/inline-const/const-expr-lifetime.rs
+++ b/src/test/ui/inline-const/const-expr-lifetime.rs
@@ -1,6 +1,5 @@
 // run-pass
 
-#![allow(incomplete_features)]
 #![feature(const_mut_refs)]
 #![feature(inline_const)]
 
diff --git a/src/test/ui/inline-const/const-expr-macro.rs b/src/test/ui/inline-const/const-expr-macro.rs
index 66b58571751ce..041f3e15a29b9 100644
--- a/src/test/ui/inline-const/const-expr-macro.rs
+++ b/src/test/ui/inline-const/const-expr-macro.rs
@@ -1,7 +1,7 @@
 // run-pass
 
-#![allow(incomplete_features)]
 #![feature(inline_const)]
+
 macro_rules! do_const_block{
     ($val:block) => { const $val }
 }
diff --git a/src/test/ui/inline-const/const-expr-reference.rs b/src/test/ui/inline-const/const-expr-reference.rs
index 747f14e4bd0aa..a54d879f69d74 100644
--- a/src/test/ui/inline-const/const-expr-reference.rs
+++ b/src/test/ui/inline-const/const-expr-reference.rs
@@ -1,6 +1,5 @@
 // run-pass
 
-#![allow(incomplete_features)]
 #![feature(inline_const)]
 
 const fn bar() -> i32 {
diff --git a/src/test/ui/simd/intrinsic/generic-elements-pass.rs b/src/test/ui/simd/intrinsic/generic-elements-pass.rs
index 08544bce45db9..3c913c0adfa60 100644
--- a/src/test/ui/simd/intrinsic/generic-elements-pass.rs
+++ b/src/test/ui/simd/intrinsic/generic-elements-pass.rs
@@ -2,7 +2,6 @@
 // ignore-emscripten FIXME(#45351) hits an LLVM assert
 
 #![feature(repr_simd, platform_intrinsics)]
-#![allow(incomplete_features)]
 #![feature(inline_const)]
 
 #[repr(simd)]