adding feature to suport nightly features on dependencies

this resolves problems with feature unification

Signed-off-by: Jakub Doka <[email protected]>

Author: jakubDoka

Cargo.toml

@@ -53,3 +53,6 @@ fuzzing = ["libfuzzer-sys", "checker", "trace-log"]
 
 # Enables serde for exposed types.
 enable-serde = ["serde"]
+
+# Makes sure crate works with nightly features enabled on the dependencies
+nightly = ["hashbrown/nightly", "bumpalo/allocator_api", "allocator-api2/nightly"]

src/lib.rs

@@ -13,6 +13,7 @@
 #![allow(dead_code)]
 #![allow(clippy::all)]
 #![no_std]
+#![cfg_attr(feature = "nightly", feature(allocator_api))]
 
 #[cfg(feature = "std")]
 extern crate std;