add copyright symbol; fix potential warnings on nightly

LICENSE-MIT

@@ -1,3 +1,5 @@
+© 2024 Kalle Wachsmuth
+
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
 in the Software without restriction, including without limitation the rights

README.md

@@ -10,3 +10,7 @@ On the downside, the interface isn't the most ergonomic.
 ## Alternatives
 - [`fdt-rs`](https://github.com/rs-embedded/fdt-rs): can even build an index to interact with DTBs faster
 - [`fdt`](https://github.com/repnop/fdt): comes with extra types for a couple of common nodes
+
+## License
+This project is licensed under the MIT license ([LICENSE-MIT](LICENSE-MIT) or
+https://opensource.org/license/mit/).

src/lib.rs

@@ -3,10 +3,12 @@
 //!
 //! [spec]: https://www.devicetree.org/specifications
 
-#![cfg_attr(not(feature = "std"), no_std)]
+#![no_std]
 
 #[cfg(feature = "alloc")]
 extern crate alloc as std_alloc;
+#[cfg(feature = "std")]
+extern crate std;
 
 #[cfg(feature = "alloc")]
 pub mod alloc;