86727df4ed
When encountering `<&T as Clone>::clone(x)` because `T: Clone`, suggest `#[derive(Clone)]` CC #40699. ``` warning: call to `.clone()` on a reference in this situation does nothing --> $DIR/noop-method-call.rs:23:71 | LL | let non_clone_type_ref_clone: &PlainType<u32> = non_clone_type_ref.clone(); | ^^^^^^^^ | = note: the type `PlainType<u32>` does not implement `Clone`, so calling `clone` on `&PlainType<u32>` copies the reference, which does not do anything and can be removed help: remove this redundant call | LL - let non_clone_type_ref_clone: &PlainType<u32> = non_clone_type_ref.clone(); LL + let non_clone_type_ref_clone: &PlainType<u32> = non_clone_type_ref; | help: if you meant to clone `PlainType<u32>`, implement `Clone` for it | LL + #[derive(Clone)] LL | struct PlainType<T>(T); | ``` |
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The Rust Programming Language
This is the main source code repository for Rust. It contains the compiler, standard library, and documentation.
Note: this README is for users rather than contributors. If you wish to contribute to the compiler, you should read CONTRIBUTING.md instead.
Table of Contents
Quick Start
Read "Installation" from The Book.
Installing from Source
If you really want to install from source (though this is not recommended), see INSTALL.md.
Getting Help
See https://www.rust-lang.org/community for a list of chat platforms and forums.
Contributing
See CONTRIBUTING.md.
License
Rust is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0), with portions covered by various BSD-like licenses.
See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.
Trademark
The Rust Foundation owns and protects the Rust and Cargo trademarks and logos (the "Rust Trademarks").
If you want to use these names or brands, please read the media guide.
Third-party logos may be subject to third-party copyrights and trademarks. See Licenses for details.