Add features to juniper_benchmarks

juniper_benchmarks/Cargo.toml

@@ -10,9 +10,12 @@ edition = "2018"
 name = "benchmark"
 harness = false
 
+[features]
+async = ["juniper/async", "futures"]
+
 [dependencies]
-juniper = { path = "../juniper", features = ["async"] }
-futures = "=0.3.1"
+juniper = { path = "../juniper" }
+futures = { version = "=0.3.1", optional = true }
 
 [dev-dependencies]
 criterion = "0.2.11"

juniper_benchmarks/src/lib.rs

@@ -105,6 +105,7 @@ pub fn execute(query: &str, vars: Variables) -> QueryResult {
     juniper::execute(query, None, &root, &vars, &ctx).map_err(|e| format!("{:?}", e))
 }
 
+#[cfg(feature = "async")]
 pub async fn execute_async(query: &str, vars: Variables) -> QueryResult {
     let root = new_schema();
     let ctx = Context::new();