Cargo generate - Developer tool to help you get up and running quickly with a new Rust project by leveraging a pre-existing git repository as a template.
Cross - "Zero setup" cross compilation and "cross testing" of Rust crates.
Cargo Watch - Watches over your Cargo project's source.
Jon Gjengset YouTube channel - Does many awesome Rust streams.
Rerast - Tool for transforming Rust code using rules.
Rust Runtime for AWS Lambda - Makes it easy to run AWS Lambda Functions written in Rust.
cargo-inspect - What is Rust doing behind the scenes?
Scale By The Bay 2018: Bryan Cantrill, Rust and Other Interesting Things - Good talk on importance of values in programming languages.
cargo-call-stack - Whole program static stack analysis.
Rust Analyzer - Experimental Rust compiler front-end for IDEs.