Modify a toolchain’s supported targets. Without the
--toolchainoptionrustupwill use the default toolchain. Seerustup help toolchainfor more information about toolchains. More information: https://rust-lang.github.io/rustup.
rustup target add --toolchain {{toolchain}} {{target}}
rustup target remove --toolchain {{toolchain}} {{target}}
rustup target list --toolchain {{toolchain}}
rustup target list --toolchain {{toolchain}} --installed