Fix 1, updated CI config

Author: rodrimati1992

.github/workflows/rust.yml

@@ -69,12 +69,12 @@ jobs:
           "rust_stable adt_const_marker alloc"
 
         cargo test --no-default-features --features \
-          "rust_stable adt_const_marker proc_macros              alloc"
-          # "rust_stable adt_const_marker proc_macros __ui_tests alloc"
+          "rust_stable adt_const_marker generic_const_exprs proc_macros              alloc"
+          # "rust_stable adt_const_marker generic_const_exprs proc_macros __ui_tests alloc"
 
         cargo test --no-default-features --features \
-          "rust_stable adt_const_marker                        alloc"
-          # "rust_stable adt_const_marker           __ui_tests alloc"
+          "rust_stable adt_const_marker generic_const_exprs                         alloc"
+          # "rust_stable adt_const_marker generic_const_exprs            __ui_tests alloc"
 
         MIRI_NIGHTLY=nightly-$(curl -s https://rust-lang.github.io/rustup-components-history/x86_64-unknown-linux-gnu/miri)
         echo "Installing latest nightly with Miri"
@@ -88,4 +88,4 @@ jobs:
         cargo clean 
 
         env RUST_BACKTRACE=0 cargo miri test --no-default-features \
-            --features "${{env.rustv}} adt_const_marker proc_macros alloc"
+            --features "${{env.rustv}} adt_const_marker generic_const_exprs proc_macros alloc"

src/lib.rs

@@ -660,6 +660,6 @@ pub mod __ {
 
 
 
-#[cfg(all(doctest, feature = "rust_stable"))]
+#[cfg(all(doctest, feature = "generic_const_exprs"))]
 #[doc = include_str!("../README.md")]
 pub struct ReadmeTest;