Forwarded: not-needed
Author: Antonin Delpeuch <antonin@delpeuch.eu>
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -125,6 +125,7 @@ path = "examples/async_source/main.rs"
 required-features = [
     "json",
     "async",
+    "warp/serve",
 ]
 
 [[example]]
@@ -251,7 +252,7 @@ features = [
 ]
 
 [dev-dependencies.warp]
-version = "0.3"
+version = "0.4"
 
 [lints.clippy]
 bool_assert_comparison = "allow"