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Rust Tools

External link -

git clone ~/.config/nvim
nvim +PackerSync

# After install use commands:
:LspInstall rust -> rust-analyzer
:TSInstall rust
  • Neovide GUI upgrade on Astro Vim
git clone
cd neovide
cargo build --release
cargo install evcxr_repl
cargo install irust
cargo install --locked bacon
bacon test # run from project folder 


Use Cargo for managing projects.

cargo new test_project // create project with binary file src/
// OR
cargo new test_project --lib // create project with library file src/ 

cd test_project

Source code is in src folder.

cargo build # build project for debug, do not run
cargo run # build & run project
cargo check # fast compiling
cargo build --release # slow build with optimizations for speed of release version

Documentation of methods & traits used in code can be compiled an opened in browser with Cargo command:

cargo doc --open

Panic Response

В ответ на панику, по умолчанию программа разматывает стек (unwinding) - проходит по стеку и вычищает данные всех функций. Для уменьшения размера можно просто отключать программу без очистки - abort. Для этого в файле Cargo.toml надо добавить в разделы [profile]:

panic = 'abort'

Cargo Clippy linter

Example of Clippy config:

cargo clippy --fix -- \
-W clippy::pedantic \
-W clippy::nursery \
-W clippy::unwrap_used \
-W clippy::expect_used

Clippy has a markdown book:

cargo install mdbook
# Run from top level of your rust-clippy directory:
mdbook serve book --open
# Goto http://localhost:3000 to see the book

Important Cargo libs

  • Tokio - async runtime
  • Eyre & color-eyre - type signatures, error report handling
  • Tracing - collect diagnostic info
  • Reqwest - HTTP requests library, async
  • Rayon - data parallelism library, without data races
  • Clap - commandline passing library
  • SQLX - compile-checked SQL, async
  • Chrono - time/date library
  • EGUI - web-gui @60FPS, runs in Webassembly
  • - web-library like React.js

Rust Prelude

Rust has a Prelude - a set of libraries included in every project. See current libs included in Prelude -

User input

std::io::stdin library is used to get user input from standard input stream. Not included in Prelude:

use std:io

let mut guess = String::new();

io::stdin().read_line(&mut guess).expect("Failed to load");

.expect handles Err variant of read_line function, crashing the program with the defined error message.