how to install rust language on centos7 vps

1. sudo yum install curl
2. curl -sSf https://static.rust-lang.org/rustup.sh | sh

└──╼ curl -sSf https://static.rust-lang.org/rustup.sh | sh
rustup: gpg available. signatures will be verified
rustup: downloading manifest for 'stable'
rustup: downloading toolchain for 'stable'
######################################################################## 100.0%
gpg: Signature made Tue 12 Apr 2016 04:51:11 AM EDT using RSA key ID 7B3B09DC
gpg: Good signature from "Rust Language (Tag and Release Signing Key) <rust-key@rust-lang.org>"
gpg: WARNING: This key is not certified with a trusted signature!
gpg:          There is no indication that the signature belongs to the owner.
Primary key fingerprint: 108F 6620 5EAE B0AA A8DD  5E1C 85AB 96E6 FA1B E5FE
     Subkey fingerprint: C134 66B7 E169 A085 1886  3216 5CB4 A934 7B3B 09DC
rustup: installing toolchain for 'stable'
rustup: extracting installer
install: creating uninstall script at /usr/local/lib/rustlib/uninstall.sh
install: installing component 'rustc'
install: installing component 'rust-std-x86_64-unknown-linux-gnu'
install: installing component 'rust-docs'
install: installing component 'cargo'

    Rust is ready to roll.