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rustup:tldr:630bf
The command rustup default nightly
is used to set the default version of the Rust programming language to the nightly release.
Rustup is a toolchain manager for Rust that allows you to easily install and manage multiple versions of the Rust compiler. It is commonly used to switch between different releases of Rust, such as stable, beta, and nightly.
The keyword "default" in the command specifies that you want to set the specified version as the default one that will be used whenever you compile or run Rust code. In this case, "nightly" is the version being set as the default.
The nightly release of Rust refers to the latest unstable version of the Rust compiler. It includes new and experimental features that are not yet available in the stable release. It is typically used by developers who want to take advantage of these features or contribute to the development of Rust.
By running rustup default nightly
, you are instructing rustup to set the nightly version as the default one, so whenever you run a Rust command, such as cargo build
or rustc myfile.rs
, it will use the nightly version of the compiler.