diff --git a/crates/loro-core/Cargo.toml b/crates/loro-core/Cargo.toml
index 1544cbf0..bc5831da 100644
--- a/crates/loro-core/Cargo.toml
+++ b/crates/loro-core/Cargo.toml
@@ -20,3 +20,7 @@ thiserror = "1.0.31"
 [dev-dependencies]
 proptest = "1.0.0"
 proptest-derive = "0.3.0"
+
+# See https://matklad.github.io/2021/02/27/delete-cargo-integration-tests.html
+[lib]
+doctest = false
diff --git a/crates/loro-core/src/dag.rs b/crates/loro-core/src/dag.rs
index 69824118..250bf2c2 100644
--- a/crates/loro-core/src/dag.rs
+++ b/crates/loro-core/src/dag.rs
@@ -4,6 +4,7 @@ use std::{
 };
 
 use fxhash::FxHashMap;
+#[cfg(test)]
 mod test;
 
 use crate::{
diff --git a/crates/loro-core/src/lib.rs b/crates/loro-core/src/lib.rs
index b8c91195..102ae2a7 100644
--- a/crates/loro-core/src/lib.rs
+++ b/crates/loro-core/src/lib.rs
@@ -17,6 +17,7 @@ mod loro;
 mod smstring;
 mod snapshot;
 mod span;
+#[cfg(test)]
 mod tests;
 mod value;
 
diff --git a/crates/loro-framework/Cargo.toml b/crates/loro-framework/Cargo.toml
index 507ff84c..487889e3 100644
--- a/crates/loro-framework/Cargo.toml
+++ b/crates/loro-framework/Cargo.toml
@@ -11,3 +11,6 @@ loro-core = {path = "../loro-core"}
 ring = "0.16.20"
 rle = {path = "../rle"}
 sha2 = "0.10.2"
+
+[lib]
+doctest = false
diff --git a/rust-toolchain b/rust-toolchain
index bf867e0a..2bf5ad04 100644
--- a/rust-toolchain
+++ b/rust-toolchain
@@ -1 +1 @@
-nightly
+stable