diff --git a/hermes/.cargo/config.toml b/hermes/.cargo/config.toml
index e8463c6a5..0dd1a3104 100644
--- a/hermes/.cargo/config.toml
+++ b/hermes/.cargo/config.toml
@@ -49,6 +49,9 @@ rustflags = [
 ]
 
 rustdocflags = [
+    "--enable-index-page",
+    "-Z",
+    "unstable-options",
     "-D",
     "warnings",
     "-D",
@@ -104,7 +107,6 @@ lto = "thin"
 incremental = false
 codegen-units = 16
 
-
 [alias]
 lint = "clippy -- -D warnings -D clippy::pedantic -D clippy::unwrap_used -D clippy::expect_used -D clippy::exit -D clippy::get_unwrap -D clippy::index_refutable_slice -D clippy::indexing_slicing -D clippy::match_on_vec_items -D clippy::match_wild_err_arm -D clippy::missing_panics_doc -D clippy::panic -D clippy::string_slice -D clippy::unchecked_duration_subtraction -D clippy::unreachable -D clippy::missing_docs_in_private_items"
 lintfix = "clippy -- -D warnings -D clippy::pedantic -D clippy::unwrap_used -D clippy::expect_used -D clippy::exit -D clippy::get_unwrap -D clippy::index_refutable_slice -D clippy::indexing_slicing -D clippy::match_on_vec_items -D clippy::match_wild_err_arm -D clippy::missing_panics_doc -D clippy::panic -D clippy::string_slice -D clippy::unchecked_duration_subtraction -D clippy::unreachable"
diff --git a/hermes/clippy.toml b/hermes/clippy.toml
index 154626ef4..6933b8164 100644
--- a/hermes/clippy.toml
+++ b/hermes/clippy.toml
@@ -1 +1 @@
-allow-unwrap-in-tests = true
+allow-expect-in-tests = true